120439872 has 140 divisors (see below), whose sum is σ = 408147520. Its totient is φ = 34401024.

The previous prime is 120439843. The next prime is 120439901. The reversal of 120439872 is 278934021.

It is an interprime number because it is at equal distance from previous prime (120439843) and next prime (120439901).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 34629 + ... + 37947.

Almost surely, 2^120439872 is an apocalyptic number.

120439872 is a gapful number since it is divisible by the number (12) 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 120439872, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (204073760).

120439872 is an abundant number, since it is smaller than the sum of its proper divisors (287707648).

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

120439872 is an equidigital number, since it uses as much as digits as its factorization.

120439872 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3350 (or 3331 counting only the distinct ones).

The product of its (nonzero) digits is 24192, while the sum is 36.

The square root of 120439872 is about 10974.5101029613. The cubic root of 120439872 is about 493.8443564371.

The spelling of 120439872 in words is "one hundred twenty million, four hundred thirty-nine thousand, eight hundred seventy-two".