22007572 has 12 divisors (see below), whose sum is σ = 39409216. Its totient is φ = 10747800.

The previous prime is 22007539. The next prime is 22007581. The reversal of 22007572 is 27570022.

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, 63804 + ... + 64147.

Almost surely, 2^22007572 is an apocalyptic number.

It is an amenable number.

22007572 is a deficient number, since it is larger than the sum of its proper divisors (17401644).

22007572 is a wasteful number, since it uses less digits than its factorization.

22007572 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 127998 (or 127996 counting only the distinct ones).

The product of its (nonzero) digits is 1960, while the sum is 25.

The square root of 22007572 is about 4691.2228682935. Note that the first 3 decimals coincide. The cubic root of 22007572 is about 280.2360764112.

Adding to 22007572 its reverse (27570022), we get a palindrome (49577594).

The spelling of 22007572 in words is "twenty-two million, seven thousand, five hundred seventy-two".