1465620864 has 64 divisors (see below), whose sum is σ = 4122077040. Its totient is φ = 459800576.

The previous prime is 1465620853. The next prime is 1465620899. The reversal of 1465620864 is 4680265641.

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

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 105729 + ... + 118784.

Almost surely, 2^1465620864 is an apocalyptic number.

It is an amenable number.

1465620864 is an abundant number, since it is smaller than the sum of its proper divisors (2656456176).

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

1465620864 is a wasteful number, since it uses less digits than its factorization.

1465620864 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 224547 (or 224535 counting only the distinct ones).

The product of its (nonzero) digits is 276480, while the sum is 42.

The square root of 1465620864 is about 38283.4280596709. The cubic root of 1465620864 is about 1135.9011684171.

The spelling of 1465620864 in words is "one billion, four hundred sixty-five million, six hundred twenty thousand, eight hundred sixty-four".