120279840 has 48 divisors (see below), whose sum is σ = 378883008. Its totient is φ = 32074496.

The previous prime is 120279839. The next prime is 120279847. The reversal of 120279840 is 48972021.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (48).

It is a hoax number, since the sum of its digits (33) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (120279847) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 124812 + ... + 125771.

It is an arithmetic number, because the mean of its divisors is an integer number (7893396).

Almost surely, 2^120279840 is an apocalyptic number.

120279840 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

120279840 is an abundant number, since it is smaller than the sum of its proper divisors (258603168).

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

120279840 is a wasteful number, since it uses less digits than its factorization.

120279840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 250601 (or 250593 counting only the distinct ones).

The product of its (nonzero) digits is 8064, while the sum is 33.

The square root of 120279840 is about 10967.2166022195. The cubic root of 120279840 is about 493.6255309818.

The spelling of 120279840 in words is "one hundred twenty million, two hundred seventy-nine thousand, eight hundred forty".