16722312 has 16 divisors (see below), whose sum is σ = 41805840. Its totient is φ = 5574096.

The previous prime is 16722289. The next prime is 16722319. The reversal of 16722312 is 21322761.

It is a Harshad number since it is a multiple of its sum of digits (24), and also a Moran number because the ratio is a prime number: 696763 = 16722312 / (1 + 6 + 7 + 2 + 2 + 3 + 1 + 2).

It is not an unprimeable number, because it can be changed into a prime (16722319) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 348358 + ... + 348405.

It is an arithmetic number, because the mean of its divisors is an integer number (2612865).

Almost surely, 2^16722312 is an apocalyptic number.

16722312 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

16722312 is an abundant number, since it is smaller than the sum of its proper divisors (25083528).

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

16722312 is a wasteful number, since it uses less digits than its factorization.

16722312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 696772 (or 696768 counting only the distinct ones).

The product of its digits is 1008, while the sum is 24.

The square root of 16722312 is about 4089.2923593209. The cubic root of 16722312 is about 255.7204386350.

The spelling of 16722312 in words is "sixteen million, seven hundred twenty-two thousand, three hundred twelve".