531916028 has 24 divisors (see below), whose sum is σ = 1100517600. Its totient is φ = 220102848.

The previous prime is 531916013. The next prime is 531916031. The reversal of 531916028 is 820619135.

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, 326723 + ... + 328346.

It is an arithmetic number, because the mean of its divisors is an integer number (45854900).

Almost surely, 2^531916028 is an apocalyptic number.

531916028 is a gapful number since it is divisible by the number (58) formed by its first and last digit.

It is an amenable number.

531916028 is an abundant number, since it is smaller than the sum of its proper divisors (568601572).

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

531916028 is a wasteful number, since it uses less digits than its factorization.

531916028 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 655109 (or 655107 counting only the distinct ones).

The product of its (nonzero) digits is 12960, while the sum is 35.

The square root of 531916028 is about 23063.3047935460. The cubic root of 531916028 is about 810.2412673555.

The spelling of 531916028 in words is "five hundred thirty-one million, nine hundred sixteen thousand, twenty-eight".