117572420 has 48 divisors (see below), whose sum is σ = 289070208. Its totient is φ = 39325440.

The previous prime is 117572407. The next prime is 117572423. The reversal of 117572420 is 24275711.

It is not an unprimeable number, because it can be changed into a prime (117572423) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4502 + ... + 15981.

It is an arithmetic number, because the mean of its divisors is an integer number (6022296).

Almost surely, 2^117572420 is an apocalyptic number.

117572420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

117572420 is an abundant number, since it is smaller than the sum of its proper divisors (171497788).

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

117572420 is a wasteful number, since it uses less digits than its factorization.

117572420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20540 (or 20538 counting only the distinct ones).

The product of its (nonzero) digits is 3920, while the sum is 29.

The square root of 117572420 is about 10843.0816652832. The cubic root of 117572420 is about 489.8936601113.

The spelling of 117572420 in words is "one hundred seventeen million, five hundred seventy-two thousand, four hundred twenty".