22042672 has 10 divisors (see below), whose sum is σ = 42707708. Its totient is φ = 11021328.

The previous prime is 22042663. The next prime is 22042681. The reversal of 22042672 is 27624022.

It is an interprime number because it is at equal distance from previous prime (22042663) and next prime (22042681).

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 688818 + ... + 688849.

Almost surely, 2^22042672 is an apocalyptic number.

It is an amenable number.

22042672 is a deficient number, since it is larger than the sum of its proper divisors (20665036).

22042672 is a wasteful number, since it uses less digits than its factorization.

22042672 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1377675 (or 1377669 counting only the distinct ones).

The product of its (nonzero) digits is 2688, while the sum is 25.

The square root of 22042672 is about 4694.9624066653. The cubic root of 22042672 is about 280.3849806397.

Adding to 22042672 its reverse (27624022), we get a palindrome (49666694).

The spelling of 22042672 in words is "twenty-two million, forty-two thousand, six hundred seventy-two".