22901628 has 24 divisors (see below), whose sum is σ = 54681088. Its totient is φ = 7456176.

The previous prime is 22901623. The next prime is 22901639. The reversal of 22901628 is 82610922.

It is a junction number, because it is equal to n+sod(n) for n = 22901595 and 22901604.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22901623) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21676 + ... + 22707.

Almost surely, 2^22901628 is an apocalyptic number.

It is an amenable number.

22901628 is an abundant number, since it is smaller than the sum of its proper divisors (31779460).

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

22901628 is a wasteful number, since it uses less digits than its factorization.

22901628 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44433 (or 44431 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 30.

The square root of 22901628 is about 4785.5645434995. The cubic root of 22901628 is about 283.9806738155.

The spelling of 22901628 in words is "twenty-two million, nine hundred one thousand, six hundred twenty-eight".