1449843690 has 32 divisors (see below), whose sum is σ = 3599614080. Its totient is φ = 373292864.

The previous prime is 1449843683. The next prime is 1449843701. The reversal of 1449843690 is 963489441.

It is a happy number.

It is a super-2 number, since 2×1449843690² = 4204093450865632200, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 832374 + ... + 834113.

It is an arithmetic number, because the mean of its divisors is an integer number (112487940).

Almost surely, 2^1449843690 is an apocalyptic number.

1449843690 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1449843690 is an abundant number, since it is smaller than the sum of its proper divisors (2149770390).

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

1449843690 is a wasteful number, since it uses less digits than its factorization.

1449843690 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1666526.

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

The square root of 1449843690 is about 38076.8130231510. The cubic root of 1449843690 is about 1131.8105233151.

The spelling of 1449843690 in words is "one billion, four hundred forty-nine million, eight hundred forty-three thousand, six hundred ninety".