515728072 has 16 divisors (see below), whose sum is σ = 970144560. Its totient is φ = 257022864.

The previous prime is 515728069. The next prime is 515728117. The reversal of 515728072 is 270827515.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 102538 + ... + 107449.

It is an arithmetic number, because the mean of its divisors is an integer number (60634035).

Almost surely, 2^515728072 is an apocalyptic number.

It is an amenable number.

515728072 is a deficient number, since it is larger than the sum of its proper divisors (454416488).

515728072 is a wasteful number, since it uses less digits than its factorization.

515728072 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 210300 (or 210296 counting only the distinct ones).

The product of its (nonzero) digits is 39200, while the sum is 37.

The square root of 515728072 is about 22709.6471130663. The cubic root of 515728072 is about 801.9370103699.

The spelling of 515728072 in words is "five hundred fifteen million, seven hundred twenty-eight thousand, seventy-two".