16628104 has 8 divisors (see below), whose sum is σ = 31177710. Its totient is φ = 8314048.

The previous prime is 16628099. The next prime is 16628111. The reversal of 16628104 is 40182661.

It can be written as a sum of positive squares in only one way, i.e., 10227204 + 6400900 = 3198^2 + 2530^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a hoax number, since the sum of its digits (28) coincides with the sum of the digits of its distinct prime factors.

It is a nialpdrome in base 16.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1039249 + ... + 1039264.

Almost surely, 2^16628104 is an apocalyptic number.

It is an amenable number.

16628104 is a deficient number, since it is larger than the sum of its proper divisors (14549606).

16628104 is a wasteful number, since it uses less digits than its factorization.

16628104 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2078519 (or 2078515 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 28.

The square root of 16628104 is about 4077.7572267118. The cubic root of 16628104 is about 255.2393190925.

The spelling of 16628104 in words is "sixteen million, six hundred twenty-eight thousand, one hundred four".