507071028 has 12 divisors (see below), whose sum is σ = 1183165760. Its totient is φ = 169023672.

The previous prime is 507071009. The next prime is 507071057. The reversal of 507071028 is 820170705.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (12).

It is a super-4 number, since 4×507071028⁴ (a number of 36 digits) contains 4444 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 507070986 and 507071004.

It is a congruent number.

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, 21127948 + ... + 21127971.

Almost surely, 2^507071028 is an apocalyptic number.

It is an amenable number.

507071028 is an abundant number, since it is smaller than the sum of its proper divisors (676094732).

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

507071028 is a wasteful number, since it uses less digits than its factorization.

507071028 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42255926 (or 42255924 counting only the distinct ones).

The product of its (nonzero) digits is 3920, while the sum is 30.

The square root of 507071028 is about 22518.2376752711. The cubic root of 507071028 is about 797.4245447686.

The spelling of 507071028 in words is "five hundred seven million, seventy-one thousand, twenty-eight".