16626004 has 12 divisors (see below), whose sum is σ = 29131200. Its totient is φ = 8302808.

The previous prime is 16625971. The next prime is 16626031. The reversal of 16626004 is 40062661.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 16626004.

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, 2037 + ... + 6115.

It is an arithmetic number, because the mean of its divisors is an integer number (2427600).

Almost surely, 2^16626004 is an apocalyptic number.

It is an amenable number.

16626004 is a deficient number, since it is larger than the sum of its proper divisors (12505196).

16626004 is a wasteful number, since it uses less digits than its factorization.

16626004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5102 (or 5100 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 25.

The square root of 16626004 is about 4077.4997240956. The cubic root of 16626004 is about 255.2285737276.

Adding to 16626004 its reverse (40062661), we get a palindrome (56688665).

The spelling of 16626004 in words is "sixteen million, six hundred twenty-six thousand, four".