16722912 has 24 divisors (see below), whose sum is σ = 43897896. Its totient is φ = 5574272.

The previous prime is 16722911. The next prime is 16722941. The reversal of 16722912 is 21922761.

It is a tau number, because it is divible by the number of its divisors (24).

It is a self number, because there is not a number n which added to its sum of digits gives 16722912.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16722911) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 87003 + ... + 87194.

It is an arithmetic number, because the mean of its divisors is an integer number (1829079).

Almost surely, 2^16722912 is an apocalyptic number.

16722912 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

16722912 is an abundant number, since it is smaller than the sum of its proper divisors (27174984).

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

16722912 is a wasteful number, since it uses less digits than its factorization.

16722912 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 174210 (or 174202 counting only the distinct ones).

The product of its digits is 3024, while the sum is 30.

The square root of 16722912 is about 4089.3657209890. The cubic root of 16722912 is about 255.7234970324.

The spelling of 16722912 in words is "sixteen million, seven hundred twenty-two thousand, nine hundred twelve".