22574428 has 6 divisors (see below), whose sum is σ = 39505256. Its totient is φ = 11287212.

The previous prime is 22574411. The next prime is 22574437. The reversal of 22574428 is 82447522.

It is a junction number, because it is equal to n+sod(n) for n = 22574393 and 22574402.

It is a congruent number.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 2821800 + ... + 2821807.

Almost surely, 2^22574428 is an apocalyptic number.

It is an amenable number.

22574428 is a deficient number, since it is larger than the sum of its proper divisors (16930828).

22574428 is a wasteful number, since it uses less digits than its factorization.

22574428 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5643611 (or 5643609 counting only the distinct ones).

The product of its digits is 35840, while the sum is 34.

The square root of 22574428 is about 4751.2554130461. The cubic root of 22574428 is about 282.6217524114.

The spelling of 22574428 in words is "twenty-two million, five hundred seventy-four thousand, four hundred twenty-eight".