16644882 has 16 divisors (see below), whose sum is σ = 33335712. Its totient is φ = 5540640.

The previous prime is 16644871. The next prime is 16644883. The reversal of 16644882 is 28844661.

It is a self number, because there is not a number n which added to its sum of digits gives 16644882.

It is not an unprimeable number, because it can be changed into a prime (16644883) 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, 4398 + ... + 7254.

It is an arithmetic number, because the mean of its divisors is an integer number (2083482).

Almost surely, 2^16644882 is an apocalyptic number.

16644882 is an abundant number, since it is smaller than the sum of its proper divisors (16690830).

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

16644882 is a wasteful number, since it uses less digits than its factorization.

16644882 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3833.

The product of its digits is 73728, while the sum is 39.

The square root of 16644882 is about 4079.8139663470. The cubic root of 16644882 is about 255.3251369698.

The spelling of 16644882 in words is "sixteen million, six hundred forty-four thousand, eight hundred eighty-two".