406626604 has 24 divisors (see below), whose sum is σ = 754282368. Its totient is φ = 191143680.

The previous prime is 406626589. The next prime is 406626607.

406626604 is nontrivially palindromic in base 10.

It is a Harshad number since it is a multiple of its sum of digits (34).

It is a self number, because there is not a number n which added to its sum of digits gives 406626604.

It is not an unprimeable number, because it can be changed into a prime (406626607) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 71589 + ... + 77059.

It is an arithmetic number, because the mean of its divisors is an integer number (31428432).

Almost surely, 2^406626604 is an apocalyptic number.

It is an amenable number.

406626604 is a deficient number, since it is larger than the sum of its proper divisors (347655764).

406626604 is a wasteful number, since it uses less digits than its factorization.

406626604 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6585 (or 6583 counting only the distinct ones).

The product of its (nonzero) digits is 41472, while the sum is 34.

The square root of 406626604 is about 20164.9846020273. The cubic root of 406626604 is about 740.8528054690.

The spelling of 406626604 in words is "four hundred six million, six hundred twenty-six thousand, six hundred four".