120387520 has 112 divisors (see below), whose sum is σ = 326550528. Its totient is φ = 41845760.

The previous prime is 120387511. The next prime is 120387551. The reversal of 120387520 is 25783021.

It is a congruent number.

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, 80217 + ... + 81703.

Almost surely, 2^120387520 is an apocalyptic number.

120387520 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 120387520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (163275264).

120387520 is an abundant number, since it is smaller than the sum of its proper divisors (206163008).

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

120387520 is a wasteful number, since it uses less digits than its factorization.

120387520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1538 (or 1528 counting only the distinct ones).

The product of its (nonzero) digits is 3360, while the sum is 28.

The square root of 120387520 is about 10972.1246802978. The cubic root of 120387520 is about 493.7727924104.

It can be divided in two parts, 120 and 387520, that added together give a triangular number (387640 = T₈₈₀).

The spelling of 120387520 in words is "one hundred twenty million, three hundred eighty-seven thousand, five hundred twenty".