22046320 has 20 divisors (see below), whose sum is σ = 51257880. Its totient is φ = 8818496.

The previous prime is 22046309. The next prime is 22046329. The reversal of 22046320 is 2364022.

It is a tau number, because it is divible by the number of its divisors (20).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22046329) 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, 137710 + ... + 137869.

It is an arithmetic number, because the mean of its divisors is an integer number (2562894).

Almost surely, 2^22046320 is an apocalyptic number.

22046320 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22046320 is an abundant number, since it is smaller than the sum of its proper divisors (29211560).

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

22046320 is a wasteful number, since it uses less digits than its factorization.

22046320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 275592 (or 275586 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 19.

The square root of 22046320 is about 4695.3508921059. The cubic root of 22046320 is about 280.4004474275.

It can be divided in two parts, 22046 and 320, that added together give a triangular number (22366 = T₂₁₁).

The spelling of 22046320 in words is "twenty-two million, forty-six thousand, three hundred twenty".