1449494340 has 96 divisors (see below), whose sum is σ = 4665427200. Its totient is φ = 329381376.

The previous prime is 1449494303. The next prime is 1449494381. The reversal of 1449494340 is 434949441.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a junction number, because it is equal to n+sod(n) for n = 1449494292 and 1449494301.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 62686 + ... + 82634.

It is an arithmetic number, because the mean of its divisors is an integer number (48598200).

Almost surely, 2^1449494340 is an apocalyptic number.

1449494340 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 1449494340, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2332713600).

1449494340 is an abundant number, since it is smaller than the sum of its proper divisors (3215932860).

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

1449494340 is a wasteful number, since it uses less digits than its factorization.

1449494340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20141 (or 20139 counting only the distinct ones).

The product of its (nonzero) digits is 248832, while the sum is 42.

The square root of 1449494340 is about 38072.2253092724. The cubic root of 1449494340 is about 1131.7196101196.

The spelling of 1449494340 in words is "one billion, four hundred forty-nine million, four hundred ninety-four thousand, three hundred forty".