120565440 has 84 divisors (see below), whose sum is σ = 414704784. Its totient is φ = 32150016.

The previous prime is 120565427. The next prime is 120565447. The reversal of 120565440 is 44565021.

120565440 is a `hidden beast` number, since 1 + 2 + 0 + 5 + 654 + 4 + 0 = 666.

It is not an unprimeable number, because it can be changed into a prime (120565447) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 18052 + ... + 23811.

Almost surely, 2^120565440 is an apocalyptic number.

120565440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

120565440 is an abundant number, since it is smaller than the sum of its proper divisors (294139344).

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

120565440 is a wasteful number, since it uses less digits than its factorization.

120565440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41886 (or 41873 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 27.

The square root of 120565440 is about 10980.2295057981. The cubic root of 120565440 is about 494.0159206352.

The spelling of 120565440 in words is "one hundred twenty million, five hundred sixty-five thousand, four hundred forty".