239631412 has 12 divisors (see below), whose sum is σ = 419502916. Its totient is φ = 119773440.

The previous prime is 239631383. The next prime is 239631421. The reversal of 239631412 is 214136932.

It can be written as a sum of positive squares in 2 ways, for example, as 180741136 + 58890276 = 13444^2 + 7674^2 .

It is a super-2 number, since 2×239631412² = 114846427234227488, 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 (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4612 + ... + 22372.

Almost surely, 2^239631412 is an apocalyptic number.

It is an amenable number.

239631412 is a deficient number, since it is larger than the sum of its proper divisors (179871504).

239631412 is a wasteful number, since it uses less digits than its factorization.

239631412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21138 (or 21136 counting only the distinct ones).

The product of its digits is 7776, while the sum is 31.

The square root of 239631412 is about 15480.0326873040. The cubic root of 239631412 is about 621.1282024628.

The spelling of 239631412 in words is "two hundred thirty-nine million, six hundred thirty-one thousand, four hundred twelve".