16632620 has 12 divisors (see below), whose sum is σ = 34928544. Its totient is φ = 6653040.

The previous prime is 16632617. The next prime is 16632643. The reversal of 16632620 is 2623661.

It is a self number, because there is not a number n which added to its sum of digits gives 16632620.

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, 415796 + ... + 415835.

It is an arithmetic number, because the mean of its divisors is an integer number (2910712).

Almost surely, 2^16632620 is an apocalyptic number.

16632620 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

16632620 is an abundant number, since it is smaller than the sum of its proper divisors (18295924).

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

16632620 is a wasteful number, since it uses less digits than its factorization.

16632620 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 831640 (or 831638 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 26.

The square root of 16632620 is about 4078.3109248805. The cubic root of 16632620 is about 255.2624236796.

The spelling of 16632620 in words is "sixteen million, six hundred thirty-two thousand, six hundred twenty".