22085572 has 6 divisors (see below), whose sum is σ = 38649758. Its totient is φ = 11042784.

The previous prime is 22085551. The next prime is 22085573. The reversal of 22085572 is 27558022.

It can be written as a sum of positive squares in only one way, i.e., 13883076 + 8202496 = 3726^2 + 2864^2 .

It is not an unprimeable number, because it can be changed into a prime (22085573) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2760693 + ... + 2760700.

Almost surely, 2^22085572 is an apocalyptic number.

It is an amenable number.

22085572 is a deficient number, since it is larger than the sum of its proper divisors (16564186).

22085572 is a wasteful number, since it uses less digits than its factorization.

22085572 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5521397 (or 5521395 counting only the distinct ones).

The product of its (nonzero) digits is 11200, while the sum is 31.

The square root of 22085572 is about 4699.5289125613. The cubic root of 22085572 is about 280.5667601853.

The spelling of 22085572 in words is "twenty-two million, eighty-five thousand, five hundred seventy-two".