1449986340 has 96 divisors (see below), whose sum is σ = 4548829824. Its totient is φ = 342005760.

The previous prime is 1449986333. The next prime is 1449986347. The reversal of 1449986340 is 436899441.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (1449986333) and next prime (1449986347).

It is a super-3 number, since 3×1449986340³ (a number of 28 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1449986340.

It is not an unprimeable number, because it can be changed into a prime (1449986347) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 5269 + ... + 54108.

It is an arithmetic number, because the mean of its divisors is an integer number (47383644).

Almost surely, 2^1449986340 is an apocalyptic number.

1449986340 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1449986340, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2274414912).

1449986340 is an abundant number, since it is smaller than the sum of its proper divisors (3098843484).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1449986340 is a wasteful number, since it uses less digits than its factorization.

1449986340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 59437 (or 59435 counting only the distinct ones).

The product of its (nonzero) digits is 746496, while the sum is 48.

The square root of 1449986340 is about 38078.6861643098. The cubic root of 1449986340 is about 1131.8476416788.

It can be divided in two parts, 1449 and 986340, that added together give a palindrome (987789).

The spelling of 1449986340 in words is "one billion, four hundred forty-nine million, nine hundred eighty-six thousand, three hundred forty".