22572279 has 12 divisors (see below), whose sum is σ = 33157800. Its totient is φ = 14792784.

The previous prime is 22572271. The next prime is 22572287. The reversal of 22572279 is 97227522.

It is an interprime number because it is at equal distance from previous prime (22572271) and next prime (22572287).

It is not a de Polignac number, because 22572279 - 2³ = 22572271 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22572271) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 20724 + ... + 21785.

It is an arithmetic number, because the mean of its divisors is an integer number (2763150).

Almost surely, 2^22572279 is an apocalyptic number.

22572279 is a deficient number, since it is larger than the sum of its proper divisors (10585521).

22572279 is a wasteful number, since it uses less digits than its factorization.

22572279 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42574 (or 42571 counting only the distinct ones).

The product of its digits is 35280, while the sum is 36.

The square root of 22572279 is about 4751.0292569084. The cubic root of 22572279 is about 282.6127839535.

The spelling of 22572279 in words is "twenty-two million, five hundred seventy-two thousand, two hundred seventy-nine".