117398880 has 72 divisors (see below), whose sum is σ = 400628592. Its totient is φ = 31305984.

The previous prime is 117398861. The next prime is 117398881. The reversal of 117398880 is 88893711.

It is a tau number, because it is divible by the number of its divisors (72).

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (117398881) 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 11 ways as a sum of consecutive naturals, for example, 39324 + ... + 42203.

It is an arithmetic number, because the mean of its divisors is an integer number (5564286).

Almost surely, 2^117398880 is an apocalyptic number.

117398880 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

117398880 is an abundant number, since it is smaller than the sum of its proper divisors (283229712).

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

117398880 is a wasteful number, since it uses less digits than its factorization.

117398880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 81548 (or 81537 counting only the distinct ones).

The product of its (nonzero) digits is 96768, while the sum is 45.

The square root of 117398880 is about 10835.0763725965. The cubic root of 117398880 is about 489.6525094265.

The spelling of 117398880 in words is "one hundred seventeen million, three hundred ninety-eight thousand, eight hundred eighty".