120243904 has 28 divisors (see below), whose sum is σ = 260302248. Its totient is φ = 54656000.

The previous prime is 120243899. The next prime is 120243917. The reversal of 120243904 is 409342021.

It is a super-2 number, since 2×120243904² = 28917192898322432, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 84697 + ... + 86104.

Almost surely, 2^120243904 is an apocalyptic number.

It is an amenable number.

120243904 is an abundant number, since it is smaller than the sum of its proper divisors (140058344).

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

120243904 is a wasteful number, since it uses less digits than its factorization.

120243904 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 170824 (or 170814 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 25.

The square root of 120243904 is about 10965.5781425331. The cubic root of 120243904 is about 493.5763659292.

Adding to 120243904 its reverse (409342021), we get a palindrome (529585925).

The spelling of 120243904 in words is "one hundred twenty million, two hundred forty-three thousand, nine hundred four".