538538694 has 16 divisors (see below), whose sum is σ = 1090055232. Its totient is φ = 177349928.

The previous prime is 538538687. The next prime is 538538711. The reversal of 538538694 is 496835835.

It is a happy number.

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, 540204 + ... + 541199.

It is an arithmetic number, because the mean of its divisors is an integer number (68128452).

Almost surely, 2^538538694 is an apocalyptic number.

538538694 is an abundant number, since it is smaller than the sum of its proper divisors (551516538).

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

538538694 is a wasteful number, since it uses less digits than its factorization.

538538694 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1081491.

The product of its digits is 3110400, while the sum is 51.

The square root of 538538694 is about 23206.4364778395. The cubic root of 538538694 is about 813.5900667991.

The spelling of 538538694 in words is "five hundred thirty-eight million, five hundred thirty-eight thousand, six hundred ninety-four".