118788420 has 24 divisors (see below), whose sum is σ = 332607744. Its totient is φ = 31676896.

The previous prime is 118788413. The next prime is 118788457. The reversal of 118788420 is 24887811.

It is a happy number.

It is a super-2 number, since 2×118788420² = 28221377452192800, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 989844 + ... + 989963.

It is an arithmetic number, because the mean of its divisors is an integer number (13858656).

Almost surely, 2^118788420 is an apocalyptic number.

118788420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

118788420 is an abundant number, since it is smaller than the sum of its proper divisors (213819324).

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

118788420 is a wasteful number, since it uses less digits than its factorization.

118788420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1979819 (or 1979817 counting only the distinct ones).

The product of its (nonzero) digits is 28672, while the sum is 39.

The square root of 118788420 is about 10899.0100467887. The cubic root of 118788420 is about 491.5767892146.

The spelling of 118788420 in words is "one hundred eighteen million, seven hundred eighty-eight thousand, four hundred twenty".