612644412 has 24 divisors (see below), whose sum is σ = 1443385216. Its totient is φ = 202231728.

The previous prime is 612644407. The next prime is 612644429. The reversal of 612644412 is 214446216.

It is a happy number.

It is a nude number because it is divisible by every one of its digits.

It is a self number, because there is not a number n which added to its sum of digits gives 612644412.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 246598 + ... + 249069.

Almost surely, 2^612644412 is an apocalyptic number.

It is an amenable number.

612644412 is an abundant number, since it is smaller than the sum of its proper divisors (830740804).

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

612644412 is a wasteful number, since it uses less digits than its factorization.

612644412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 495777 (or 495775 counting only the distinct ones).

The product of its digits is 9216, while the sum is 30.

The square root of 612644412 is about 24751.6547325628. The cubic root of 612644412 is about 849.3163647330.

The spelling of 612644412 in words is "six hundred twelve million, six hundred forty-four thousand, four hundred twelve".