22473621 has 12 divisors (see below), whose sum is σ = 32512480. Its totient is φ = 14959080.

The previous prime is 22473601. The next prime is 22473653. The reversal of 22473621 is 12637422.

It is not a de Polignac number, because 22473621 - 2²¹ = 20376469 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22473601) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5760 + ... + 8838.

Almost surely, 2^22473621 is an apocalyptic number.

It is an amenable number.

22473621 is a deficient number, since it is larger than the sum of its proper divisors (10038859).

22473621 is a wasteful number, since it uses less digits than its factorization.

22473621 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3896 (or 3893 counting only the distinct ones).

The product of its digits is 4032, while the sum is 27.

The square root of 22473621 is about 4740.6350840367. The cubic root of 22473621 is about 282.2004384564.

The spelling of 22473621 in words is "twenty-two million, four hundred seventy-three thousand, six hundred twenty-one".