612808238 has 8 divisors (see below), whose sum is σ = 1050528432. Its totient is φ = 262632096.

The previous prime is 612808213. The next prime is 612808247. The reversal of 612808238 is 832808216.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

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, 21885995 + ... + 21886022.

It is an arithmetic number, because the mean of its divisors is an integer number (131316054).

Almost surely, 2^612808238 is an apocalyptic number.

612808238 is a deficient number, since it is larger than the sum of its proper divisors (437720194).

612808238 is a wasteful number, since it uses less digits than its factorization.

612808238 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43772026.

The product of its (nonzero) digits is 36864, while the sum is 38.

The square root of 612808238 is about 24754.9639062552. The cubic root of 612808238 is about 849.3920626416.

The spelling of 612808238 in words is "six hundred twelve million, eight hundred eight thousand, two hundred thirty-eight".