120638910 has 64 divisors (see below), whose sum is σ = 345295872. Its totient is φ = 26374656.

The previous prime is 120638891. The next prime is 120638993. The reversal of 120638910 is 19836021.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 7659 + ... + 17318.

It is an arithmetic number, because the mean of its divisors is an integer number (5395248).

Almost surely, 2^120638910 is an apocalyptic number.

120638910 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

120638910 is an abundant number, since it is smaller than the sum of its proper divisors (224656962).

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

120638910 is a wasteful number, since it uses less digits than its factorization.

120638910 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25017.

The product of its (nonzero) digits is 2592, while the sum is 30.

The square root of 120638910 is about 10983.5745547613. The cubic root of 120638910 is about 494.1162478368.

The spelling of 120638910 in words is "one hundred twenty million, six hundred thirty-eight thousand, nine hundred ten".