612626216 has 64 divisors (see below), whose sum is σ = 1212710400. Its totient is φ = 289785600.

The previous prime is 612626213. The next prime is 612626221.

612626216 is nontrivially palindromic in base 10.

It is a hoax number, since the sum of its digits (32) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (612626213) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3541106 + ... + 3541278.

It is an arithmetic number, because the mean of its divisors is an integer number (18948600).

Almost surely, 2^612626216 is an apocalyptic number.

It is an amenable number.

612626216 is a deficient number, since it is larger than the sum of its proper divisors (600084184).

612626216 is a wasteful number, since it uses less digits than its factorization.

612626216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 450 (or 446 counting only the distinct ones).

The product of its digits is 10368, while the sum is 32.

The square root of 612626216 is about 24751.2871584490. The cubic root of 612626216 is about 849.3079562047.

The spelling of 612626216 in words is "six hundred twelve million, six hundred twenty-six thousand, two hundred sixteen".