117575388 has 120 divisors (see below), whose sum is σ = 359073792. Its totient is φ = 32848416.

The previous prime is 117575387. The next prime is 117575389. The reversal of 117575388 is 883575711.

It is an interprime number because it is at equal distance from previous prime (117575387) and next prime (117575389).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (117575387) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 106045 + ... + 107147.

Almost surely, 2^117575388 is an apocalyptic number.

117575388 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 117575388, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (179536896).

117575388 is an abundant number, since it is smaller than the sum of its proper divisors (241498404).

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

117575388 is a wasteful number, since it uses less digits than its factorization.

117575388 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1173 (or 1162 counting only the distinct ones).

The product of its digits is 235200, while the sum is 45.

The square root of 117575388 is about 10843.2185258806. The cubic root of 117575388 is about 489.8977823710.

The spelling of 117575388 in words is "one hundred seventeen million, five hundred seventy-five thousand, three hundred eighty-eight".