117718290 has 24 divisors (see below), whose sum is σ = 306067788. Its totient is φ = 31391520.

The previous prime is 117718277. The next prime is 117718291. The reversal of 117718290 is 92817711.

It can be written as a sum of positive squares in 2 ways, for example, as 108555561 + 9162729 = 10419^2 + 3027^2 .

It is not an unprimeable number, because it can be changed into a prime (117718291) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 653901 + ... + 654080.

Almost surely, 2^117718290 is an apocalyptic number.

117718290 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

117718290 is an abundant number, since it is smaller than the sum of its proper divisors (188349498).

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

117718290 is a wasteful number, since it uses less digits than its factorization.

117718290 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1307994 (or 1307991 counting only the distinct ones).

The product of its (nonzero) digits is 7056, while the sum is 36.

The square root of 117718290 is about 10849.8059890488. The cubic root of 117718290 is about 490.0961771506.

The spelling of 117718290 in words is "one hundred seventeen million, seven hundred eighteen thousand, two hundred ninety".