22057628 has 12 divisors (see below), whose sum is σ = 38646552. Its totient is φ = 11015760.

The previous prime is 22057601. The next prime is 22057639. The reversal of 22057628 is 82675022.

It is a junction number, because it is equal to n+sod(n) for n = 22057594 and 22057603.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1223 + ... + 6753.

It is an arithmetic number, because the mean of its divisors is an integer number (3220546).

Almost surely, 2^22057628 is an apocalyptic number.

It is an amenable number.

22057628 is a deficient number, since it is larger than the sum of its proper divisors (16588924).

22057628 is a wasteful number, since it uses less digits than its factorization.

22057628 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6532 (or 6530 counting only the distinct ones).

The product of its (nonzero) digits is 13440, while the sum is 32.

The square root of 22057628 is about 4696.5549075892. The cubic root of 22057628 is about 280.4483802389.

The spelling of 22057628 in words is "twenty-two million, fifty-seven thousand, six hundred twenty-eight".