109920840 has 64 divisors (see below), whose sum is σ = 330644160. Its totient is φ = 29233920.

The previous prime is 109920809. The next prime is 109920859. The reversal of 109920840 is 48029901.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 54327 + ... + 56313.

It is an arithmetic number, because the mean of its divisors is an integer number (5166315).

Almost surely, 2^109920840 is an apocalyptic number.

109920840 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

109920840 is an abundant number, since it is smaller than the sum of its proper divisors (220723320).

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

109920840 is a wasteful number, since it uses less digits than its factorization.

109920840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2462 (or 2458 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 33.

The square root of 109920840 is about 10484.3139975871. The cubic root of 109920840 is about 479.0270221258.

The spelling of 109920840 in words is "one hundred nine million, nine hundred twenty thousand, eight hundred forty".