120439936 has 32 divisors (see below), whose sum is σ = 252572400. Its totient is φ = 57049344.

The previous prime is 120439931. The next prime is 120439981. The reversal of 120439936 is 639934021.

It is a tau number, because it is divible by the number of its divisors (32).

It is a junction number, because it is equal to n+sod(n) for n = 120439895 and 120439904.

It is not an unprimeable number, because it can be changed into a prime (120439931) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 22330 + ... + 27193.

Almost surely, 2^120439936 is an apocalyptic number.

120439936 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

120439936 is an abundant number, since it is smaller than the sum of its proper divisors (132132464).

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

120439936 is an equidigital number, since it uses as much as digits as its factorization.

120439936 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49556 (or 49544 counting only the distinct ones).

The product of its (nonzero) digits is 34992, while the sum is 37.

The square root of 120439936 is about 10974.5130188086. The cubic root of 120439936 is about 493.8444439110.

The spelling of 120439936 in words is "one hundred twenty million, four hundred thirty-nine thousand, nine hundred thirty-six".