538991610 has 16 divisors (see below), whose sum is σ = 1293579936. Its totient is φ = 143731088.

The previous prime is 538991599. The next prime is 538991623. The reversal of 538991610 is 16199835.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8983164 + ... + 8983223.

It is an arithmetic number, because the mean of its divisors is an integer number (80848746).

Almost surely, 2^538991610 is an apocalyptic number.

538991610 is an abundant number, since it is smaller than the sum of its proper divisors (754588326).

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

538991610 is a wasteful number, since it uses less digits than its factorization.

538991610 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17966397.

The product of its (nonzero) digits is 58320, while the sum is 42.

The square root of 538991610 is about 23216.1928403431. The cubic root of 538991610 is about 813.8180818024.

The spelling of 538991610 in words is "five hundred thirty-eight million, nine hundred ninety-one thousand, six hundred ten".