612668432 has 20 divisors (see below), whose sum is σ = 1192235820. Its totient is φ = 304994688.

The previous prime is 612668431. The next prime is 612668461. The reversal of 612668432 is 234866216.

It can be written as a sum of positive squares in 2 ways, for example, as 530657296 + 82011136 = 23036^2 + 9056^2 .

It is not an unprimeable number, because it can be changed into a prime (612668431) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 79943 + ... + 87270.

It is an arithmetic number, because the mean of its divisors is an integer number (59611791).

Almost surely, 2^612668432 is an apocalyptic number.

It is an amenable number.

612668432 is a deficient number, since it is larger than the sum of its proper divisors (579567388).

612668432 is a wasteful number, since it uses less digits than its factorization.

612668432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 167450 (or 167444 counting only the distinct ones).

The product of its digits is 82944, while the sum is 38.

The square root of 612668432 is about 24752.1399478914. The cubic root of 612668432 is about 849.3274643268.

The spelling of 612668432 in words is "six hundred twelve million, six hundred sixty-eight thousand, four hundred thirty-two".