117421800 has 192 divisors, whose sum is σ = 385689600. Its totient is φ = 29510400.

The previous prime is 117421793. The next prime is 117421819. The reversal of 117421800 is 8124711.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1097347 + ... + 1097453.

It is an arithmetic number, because the mean of its divisors is an integer number (2008800).

Almost surely, 2^117421800 is an apocalyptic number.

117421800 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 117421800, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (192844800).

117421800 is an abundant number, since it is smaller than the sum of its proper divisors (268267800).

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

117421800 is a wasteful number, since it uses less digits than its factorization.

117421800 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 216 (or 207 counting only the distinct ones).

The product of its (nonzero) digits is 448, while the sum is 24.

The square root of 117421800 is about 10836.1339969567. The cubic root of 117421800 is about 489.6843726074.

The spelling of 117421800 in words is "one hundred seventeen million, four hundred twenty-one thousand, eight hundred".