612242218 has 8 divisors (see below), whose sum is σ = 1049558112. Its totient is φ = 262389516.

The previous prime is 612242119. The next prime is 612242227. The reversal of 612242218 is 812242216.

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

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, 21865780 + ... + 21865807.

It is an arithmetic number, because the mean of its divisors is an integer number (131194764).

Almost surely, 2^612242218 is an apocalyptic number.

612242218 is a deficient number, since it is larger than the sum of its proper divisors (437315894).

612242218 is a wasteful number, since it uses less digits than its factorization.

612242218 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43731596.

The product of its digits is 3072, while the sum is 28.

The square root of 612242218 is about 24743.5288105799. The cubic root of 612242218 is about 849.1304685771.

The spelling of 612242218 in words is "six hundred twelve million, two hundred forty-two thousand, two hundred eighteen".