117979400 has 192 divisors, whose sum is σ = 351406080. Its totient is φ = 35769600.

The previous prime is 117979399. The next prime is 117979423. The reversal of 117979400 is 4979711.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 723719 + ... + 723881.

It is an arithmetic number, because the mean of its divisors is an integer number (1830240).

Almost surely, 2^117979400 is an apocalyptic number.

117979400 is a gapful number since it is divisible by the number (10) 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 117979400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (175703040).

117979400 is an abundant number, since it is smaller than the sum of its proper divisors (233426680).

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

117979400 is a wasteful number, since it uses less digits than its factorization.

117979400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 244 (or 235 counting only the distinct ones).

The product of its (nonzero) digits is 15876, while the sum is 38.

The square root of 117979400 is about 10861.8322579572. The cubic root of 117979400 is about 490.4582690383.

The spelling of 117979400 in words is "one hundred seventeen million, nine hundred seventy-nine thousand, four hundred".