120044638 has 32 divisors (see below), whose sum is σ = 211841280. Its totient is φ = 49947840.

The previous prime is 120044623. The next prime is 120044647. The reversal of 120044638 is 836440021.

It is a super-2 number, since 2×120044638² = 28821430225102088, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 162073 + ... + 162811.

It is an arithmetic number, because the mean of its divisors is an integer number (6620040).

Almost surely, 2^120044638 is an apocalyptic number.

120044638 is a deficient number, since it is larger than the sum of its proper divisors (91796642).

120044638 is a wasteful number, since it uses less digits than its factorization.

120044638 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1072.

The product of its (nonzero) digits is 4608, while the sum is 28.

The square root of 120044638 is about 10956.4883972923. The cubic root of 120044638 is about 493.3035666035.

Adding to 120044638 its reverse (836440021), we get a palindrome (956484659).

The spelling of 120044638 in words is "one hundred twenty million, forty-four thousand, six hundred thirty-eight".