117347238 has 64 divisors (see below), whose sum is σ = 267632640. Its totient is φ = 38102400.

The previous prime is 117347233. The next prime is 117347257. The reversal of 117347238 is 832743711.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (117347231) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 486798 + ... + 487038.

It is an arithmetic number, because the mean of its divisors is an integer number (4181760).

Almost surely, 2^117347238 is an apocalyptic number.

117347238 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 117347238, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (133816320).

117347238 is an abundant number, since it is smaller than the sum of its proper divisors (150285402).

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

117347238 is a wasteful number, since it uses less digits than its factorization.

117347238 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 450 (or 444 counting only the distinct ones).

The product of its digits is 28224, while the sum is 36.

The square root of 117347238 is about 10832.6930169741. The cubic root of 117347238 is about 489.5807019739.

The spelling of 117347238 in words is "one hundred seventeen million, three hundred forty-seven thousand, two hundred thirty-eight".