120520044 has 18 divisors (see below), whose sum is σ = 304647980. Its totient is φ = 40173336.

The previous prime is 120520031. The next prime is 120520073. The reversal of 120520044 is 440025021.

It is a tau number, because it is divible by the number of its divisors (18).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 120519999 and 120520026.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1673854 + ... + 1673925.

Almost surely, 2^120520044 is an apocalyptic number.

It is an amenable number.

120520044 is an abundant number, since it is smaller than the sum of its proper divisors (184127936).

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

120520044 is a wasteful number, since it uses less digits than its factorization.

120520044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3347789 (or 3347784 counting only the distinct ones).

The product of its (nonzero) digits is 320, while the sum is 18.

The square root of 120520044 is about 10978.1621412694. The cubic root of 120520044 is about 493.9539096033.

Adding to 120520044 its reverse (440025021), we get a palindrome (560545065).

The spelling of 120520044 in words is "one hundred twenty million, five hundred twenty thousand, forty-four".