22657473 has 12 divisors (see below), whose sum is σ = 32772480. Its totient is φ = 15084216.

The previous prime is 22657463. The next prime is 22657477. The reversal of 22657473 is 37475622.

It is a happy number.

It is not a de Polignac number, because 22657473 - 2⁵ = 22657441 is a prime.

It is a super-2 number, since 2×22657473² = 1026722165491458, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (22657477) 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 11 ways as a sum of consecutive naturals, for example, 8140 + ... + 10562.

It is an arithmetic number, because the mean of its divisors is an integer number (2731040).

Almost surely, 2^22657473 is an apocalyptic number.

It is an amenable number.

22657473 is a deficient number, since it is larger than the sum of its proper divisors (10115007).

22657473 is a wasteful number, since it uses less digits than its factorization.

22657473 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3468 (or 3465 counting only the distinct ones).

The product of its digits is 70560, while the sum is 36.

The square root of 22657473 is about 4759.9866596452. The cubic root of 22657473 is about 282.9678904081.

The spelling of 22657473 in words is "twenty-two million, six hundred fifty-seven thousand, four hundred seventy-three".