22574642 has 4 divisors (see below), whose sum is σ = 33861966. Its totient is φ = 11287320.

The previous prime is 22574633. The next prime is 22574677. The reversal of 22574642 is 24647522.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 21631801 + 942841 = 4651^2 + 971^2 .

It is a super-2 number, since 2×22574642² = 1019228922856328, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 22574599 and 22574608.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5643659 + ... + 5643662.

Almost surely, 2^22574642 is an apocalyptic number.

22574642 is a deficient number, since it is larger than the sum of its proper divisors (11287324).

22574642 is a wasteful number, since it uses less digits than its factorization.

22574642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11287323.

The product of its digits is 26880, while the sum is 32.

The square root of 22574642 is about 4751.2779333565. The cubic root of 22574642 is about 282.6226454701.

The spelling of 22574642 in words is "twenty-two million, five hundred seventy-four thousand, six hundred forty-two".