16622872 has 64 divisors (see below), whose sum is σ = 39744000. Its totient is φ = 6345216.

The previous prime is 16622863. The next prime is 16622899. The reversal of 16622872 is 27822661.

It is a Harshad number since it is a multiple of its sum of digits (34).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 17629 + ... + 18547.

It is an arithmetic number, because the mean of its divisors is an integer number (621000).

Almost surely, 2^16622872 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 16622872, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (19872000).

16622872 is an abundant number, since it is smaller than the sum of its proper divisors (23121128).

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

16622872 is a wasteful number, since it uses less digits than its factorization.

16622872 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 968 (or 964 counting only the distinct ones).

The product of its digits is 16128, while the sum is 34.

The square root of 16622872 is about 4077.1156471211. The cubic root of 16622872 is about 255.2125461021.

The spelling of 16622872 in words is "sixteen million, six hundred twenty-two thousand, eight hundred seventy-two".