118407820 has 12 divisors (see below), whose sum is σ = 248656464. Its totient is φ = 47363120.

The previous prime is 118407811. The next prime is 118407823. The reversal of 118407820 is 28704811.

It is not an unprimeable number, because it can be changed into a prime (118407823) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2960176 + ... + 2960215.

It is an arithmetic number, because the mean of its divisors is an integer number (20721372).

Almost surely, 2^118407820 is an apocalyptic number.

118407820 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

118407820 is an abundant number, since it is smaller than the sum of its proper divisors (130248644).

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

118407820 is a wasteful number, since it uses less digits than its factorization.

118407820 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5920400 (or 5920398 counting only the distinct ones).

The product of its (nonzero) digits is 3584, while the sum is 31.

The square root of 118407820 is about 10881.5357372018. The cubic root of 118407820 is about 491.0512208695.

The spelling of 118407820 in words is "one hundred eighteen million, four hundred seven thousand, eight hundred twenty".