2864915928 has 72 divisors (see below), whose sum is σ = 9025957980. Its totient is φ = 818546400.

The previous prime is 2864915881. The next prime is 2864915929. The reversal of 2864915928 is 8295194682.

It is a happy number.

2864915928 is a `hidden beast` number, since 2 + 8 + 6 + 49 + 1 + 592 + 8 = 666.

It is a tau number, because it is divible by the number of its divisors (72).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2864915929) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 402498 + ... + 409553.

Almost surely, 2^2864915928 is an apocalyptic number.

2864915928 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

2864915928 is an abundant number, since it is smaller than the sum of its proper divisors (6161042052).

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

2864915928 is a wasteful number, since it uses less digits than its factorization.

2864915928 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 812077 (or 812063 counting only the distinct ones).

The product of its digits is 2488320, while the sum is 54.

The square root of 2864915928 is about 53524.9094160840. The cubic root of 2864915928 is about 1420.2690636079.

The spelling of 2864915928 in words is "two billion, eight hundred sixty-four million, nine hundred fifteen thousand, nine hundred twenty-eight".