22426572 has 24 divisors (see below), whose sum is σ = 59804416. Its totient is φ = 6407568.

The previous prime is 22426561. The next prime is 22426577. The reversal of 22426572 is 27562422.

It is a super-2 number, since 2×22426572² = 1005902263342368, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (22426577) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 133408 + ... + 133575.

Almost surely, 2^22426572 is an apocalyptic number.

It is an amenable number.

22426572 is an abundant number, since it is smaller than the sum of its proper divisors (37377844).

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

22426572 is a wasteful number, since it uses less digits than its factorization.

22426572 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 266997 (or 266995 counting only the distinct ones).

The product of its digits is 13440, while the sum is 30.

The square root of 22426572 is about 4735.6701743259. The cubic root of 22426572 is about 282.0033700115.

Adding to 22426572 its reverse (27562422), we get a palindrome (49988994).

It can be divided in two parts, 224 and 26572, that added together give a triangular number (26796 = T₂₃₁).

The spelling of 22426572 in words is "twenty-two million, four hundred twenty-six thousand, five hundred seventy-two".