138569304 has 32 divisors (see below), whose sum is σ = 346716720. Its totient is φ = 46150656.

The previous prime is 138569297. The next prime is 138569339. The reversal of 138569304 is 403965831.

It is a super-2 number, since 2×138569304² = 38402904022088832, which contains 22 as substring.

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, 46384 + ... + 49280.

Almost surely, 2^138569304 is an apocalyptic number.

It is an amenable number.

138569304 is an abundant number, since it is smaller than the sum of its proper divisors (208147416).

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

138569304 is a wasteful number, since it uses less digits than its factorization.

138569304 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4899 (or 4895 counting only the distinct ones).

The product of its (nonzero) digits is 77760, while the sum is 39.

The square root of 138569304 is about 11771.5463725035. The cubic root of 138569304 is about 517.4745694521.

The spelling of 138569304 in words is "one hundred thirty-eight million, five hundred sixty-nine thousand, three hundred four".