109404120 has 128 divisors (see below), whose sum is σ = 378201600. Its totient is φ = 24800256.

The previous prime is 109404107. The next prime is 109404131. The reversal of 109404120 is 21404901.

It is a super-2 number, since 2×109404120² = 23938522945948800, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (21).

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, 116292 + ... + 117228.

It is an arithmetic number, because the mean of its divisors is an integer number (2954700).

Almost surely, 2^109404120 is an apocalyptic number.

109404120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 109404120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (189100800).

109404120 is an abundant number, since it is smaller than the sum of its proper divisors (268797480).

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

109404120 is a wasteful number, since it uses less digits than its factorization.

109404120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1097 (or 1093 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 21.

The square root of 109404120 is about 10459.6424413074. The cubic root of 109404120 is about 478.2752334936.

The spelling of 109404120 in words is "one hundred nine million, four hundred four thousand, one hundred twenty".