16628612 has 48 divisors (see below), whose sum is σ = 39080832. Its totient is φ = 5978880.

The previous prime is 16628603. The next prime is 16628641. The reversal of 16628612 is 21682661.

It is a nialpdrome in base 16.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1928 + ... + 6080.

It is an arithmetic number, because the mean of its divisors is an integer number (814184).

Almost surely, 2^16628612 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 16628612, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (19540416).

16628612 is an abundant number, since it is smaller than the sum of its proper divisors (22452220).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

16628612 is a wasteful number, since it uses less digits than its factorization.

16628612 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4188 (or 4186 counting only the distinct ones).

The product of its digits is 6912, while the sum is 32.

The square root of 16628612 is about 4077.8195153783. The cubic root of 16628612 is about 255.2419183115.

The spelling of 16628612 in words is "sixteen million, six hundred twenty-eight thousand, six hundred twelve".