22554628 has 24 divisors (see below), whose sum is σ = 41872320. Its totient is φ = 10607520.

The previous prime is 22554619. The next prime is 22554629. The reversal of 22554628 is 82645522.

It is a super-2 number, since 2×22554628² = 1017422488436768, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 22554593 and 22554602.

It is not an unprimeable number, because it can be changed into a prime (22554629) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3603 + ... + 7621.

It is an arithmetic number, because the mean of its divisors is an integer number (1744680).

Almost surely, 2^22554628 is an apocalyptic number.

It is an amenable number.

22554628 is a deficient number, since it is larger than the sum of its proper divisors (19317692).

22554628 is a wasteful number, since it uses less digits than its factorization.

22554628 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4107 (or 4105 counting only the distinct ones).

The product of its digits is 38400, while the sum is 34.

The square root of 22554628 is about 4749.1712961316. The cubic root of 22554628 is about 282.5390991905.

The spelling of 22554628 in words is "twenty-two million, five hundred fifty-four thousand, six hundred twenty-eight".