538856840 has 64 divisors (see below), whose sum is σ = 1227985920. Its totient is φ = 212800000.

The previous prime is 538856831. The next prime is 538856881. The reversal of 538856840 is 48658835.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1917500 + ... + 1917780.

It is an arithmetic number, because the mean of its divisors is an integer number (19187280).

Almost surely, 2^538856840 is an apocalyptic number.

It is an amenable number.

538856840 is an abundant number, since it is smaller than the sum of its proper divisors (689129080).

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

538856840 is a wasteful number, since it uses less digits than its factorization.

538856840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 734 (or 730 counting only the distinct ones).

The product of its (nonzero) digits is 921600, while the sum is 47.

The square root of 538856840 is about 23213.2901588724. The cubic root of 538856840 is about 813.7502468532.

The spelling of 538856840 in words is "five hundred thirty-eight million, eight hundred fifty-six thousand, eight hundred forty".