538870864 has 40 divisors (see below), whose sum is σ = 1245098880. Its totient is φ = 220902528.

The previous prime is 538870859. The next prime is 538870903. The reversal of 538870864 is 468078835.

It is a Smith number, since the sum of its digits (49) coincides with the sum of the digits of its prime factors.

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, 102019 + ... + 107170.

It is an arithmetic number, because the mean of its divisors is an integer number (31127472).

Almost surely, 2^538870864 is an apocalyptic number.

It is an amenable number.

538870864 is an abundant number, since it is smaller than the sum of its proper divisors (706228016).

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

538870864 is a wasteful number, since it uses less digits than its factorization.

538870864 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 209227 (or 209221 counting only the distinct ones).

The product of its (nonzero) digits is 1290240, while the sum is 49.

The square root of 538870864 is about 23213.5922252460. The cubic root of 538870864 is about 813.7573062016.

The spelling of 538870864 in words is "five hundred thirty-eight million, eight hundred seventy thousand, eight hundred sixty-four".