117074538 has 128 divisors (see below), whose sum is σ = 313098240. Its totient is φ = 31726080.

The previous prime is 117074521. The next prime is 117074543. The reversal of 117074538 is 835470711.

117074538 is a `hidden beast` number, since 117 + 0 + 7 + 4 + 538 = 666.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1136595 + ... + 1136697.

It is an arithmetic number, because the mean of its divisors is an integer number (2446080).

Almost surely, 2^117074538 is an apocalyptic number.

117074538 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 117074538, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (156549120).

117074538 is an abundant number, since it is smaller than the sum of its proper divisors (196023702).

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

117074538 is a wasteful number, since it uses less digits than its factorization.

117074538 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 249 (or 243 counting only the distinct ones).

The product of its (nonzero) digits is 23520, while the sum is 36.

The square root of 117074538 is about 10820.0987980702. The cubic root of 117074538 is about 489.2011668084.

The spelling of 117074538 in words is "one hundred seventeen million, seventy-four thousand, five hundred thirty-eight".