22485128 has 8 divisors (see below), whose sum is σ = 42159630. Its totient is φ = 11242560.

The previous prime is 22485119. The next prime is 22485131. The reversal of 22485128 is 82158422.

It can be written as a sum of positive squares in only one way, i.e., 13853284 + 8631844 = 3722^2 + 2938^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a junction number, because it is equal to n+sod(n) for n = 22485094 and 22485103.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1405313 + ... + 1405328.

Almost surely, 2^22485128 is an apocalyptic number.

It is an amenable number.

22485128 is a deficient number, since it is larger than the sum of its proper divisors (19674502).

22485128 is a wasteful number, since it uses less digits than its factorization.

22485128 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2810647 (or 2810643 counting only the distinct ones).

The product of its digits is 10240, while the sum is 32.

The square root of 22485128 is about 4741.8485846767. The cubic root of 22485128 is about 282.2485945646.

The spelling of 22485128 in words is "twenty-two million, four hundred eighty-five thousand, one hundred twenty-eight".