612972428 has 12 divisors (see below), whose sum is σ = 1078629552. Its totient is φ = 304792560.

The previous prime is 612972407. The next prime is 612972457. The reversal of 612972428 is 824279216.

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, 422600 + ... + 424047.

It is an arithmetic number, because the mean of its divisors is an integer number (89885796).

Almost surely, 2^612972428 is an apocalyptic number.

It is an amenable number.

612972428 is a deficient number, since it is larger than the sum of its proper divisors (465657124).

612972428 is a wasteful number, since it uses less digits than its factorization.

612972428 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 846832 (or 846830 counting only the distinct ones).

The product of its digits is 96768, while the sum is 41.

The square root of 612972428 is about 24758.2799887230. The cubic root of 612972428 is about 849.4679152062.

The spelling of 612972428 in words is "six hundred twelve million, nine hundred seventy-two thousand, four hundred twenty-eight".