1440497956 has 24 divisors (see below), whose sum is σ = 2627976960. Its totient is φ = 690108000.

The previous prime is 1440497953. The next prime is 1440498001. The reversal of 1440497956 is 6597940441.

It is a super-2 number, since 2×1440497956² = 4150068722480355872, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1440497953) 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 7 ways as a sum of consecutive naturals, for example, 44986 + ... + 70033.

It is an arithmetic number, because the mean of its divisors is an integer number (109499040).

Almost surely, 2^1440497956 is an apocalyptic number.

It is an amenable number.

1440497956 is a deficient number, since it is larger than the sum of its proper divisors (1187479004).

1440497956 is a wasteful number, since it uses less digits than its factorization.

1440497956 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 115155 (or 115153 counting only the distinct ones).

The product of its (nonzero) digits is 1088640, while the sum is 49.

The square root of 1440497956 is about 37953.8925012969. The cubic root of 1440497956 is about 1129.3733848054.

The spelling of 1440497956 in words is "one billion, four hundred forty million, four hundred ninety-seven thousand, nine hundred fifty-six".