120636424 has 8 divisors (see below), whose sum is σ = 226193310. Its totient is φ = 60318208.

The previous prime is 120636421. The next prime is 120636443. The reversal of 120636424 is 424636021.

It can be written as a sum of positive squares in only one way, i.e., 92736900 + 27899524 = 9630^2 + 5282^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a junction number, because it is equal to n+sod(n) for n = 120636392 and 120636401.

It is not an unprimeable number, because it can be changed into a prime (120636421) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7539769 + ... + 7539784.

Almost surely, 2^120636424 is an apocalyptic number.

It is an amenable number.

120636424 is a deficient number, since it is larger than the sum of its proper divisors (105556886).

120636424 is a wasteful number, since it uses less digits than its factorization.

120636424 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15079559 (or 15079555 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 28.

The square root of 120636424 is about 10983.4613851918. The cubic root of 120636424 is about 494.1128537372.

The spelling of 120636424 in words is "one hundred twenty million, six hundred thirty-six thousand, four hundred twenty-four".