117732390 has 16 divisors (see below), whose sum is σ = 282557808. Its totient is φ = 31395296.

The previous prime is 117732371. The next prime is 117732401. The reversal of 117732390 is 93237711.

It is a happy number.

It is a super-2 number, since 2×117732390² = 27721831310224200, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 1962177 + ... + 1962236.

It is an arithmetic number, because the mean of its divisors is an integer number (17659863).

Almost surely, 2^117732390 is an apocalyptic number.

117732390 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

117732390 is an abundant number, since it is smaller than the sum of its proper divisors (164825418).

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

117732390 is a wasteful number, since it uses less digits than its factorization.

117732390 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3924423.

The product of its (nonzero) digits is 7938, while the sum is 33.

The square root of 117732390 is about 10850.4557507968. The cubic root of 117732390 is about 490.1157438642.

The spelling of 117732390 in words is "one hundred seventeen million, seven hundred thirty-two thousand, three hundred ninety".