1490957440 has 64 divisors (see below), whose sum is σ = 4073520960. Its totient is φ = 511183872.

The previous prime is 1490957407. The next prime is 1490957467. The reversal of 1490957440 is 447590941.

It is a tau number, because it is divible by the number of its divisors (64).

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 161922 + ... + 170881.

It is an arithmetic number, because the mean of its divisors is an integer number (63648765).

Almost surely, 2^1490957440 is an apocalyptic number.

1490957440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1490957440 is an abundant number, since it is smaller than the sum of its proper divisors (2582563520).

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

1490957440 is an equidigital number, since it uses as much as digits as its factorization.

1490957440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 332829 (or 332817 counting only the distinct ones).

The product of its (nonzero) digits is 181440, while the sum is 43.

The square root of 1490957440 is about 38612.9180456489. The cubic root of 1490957440 is about 1142.4093498072.

The spelling of 1490957440 in words is "one billion, four hundred ninety million, nine hundred fifty-seven thousand, four hundred forty".