22568398 has 4 divisors (see below), whose sum is σ = 33852600. Its totient is φ = 11284198.

The previous prime is 22568387. The next prime is 22568411. The reversal of 22568398 is 89386522.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5642098 + ... + 5642101.

It is an arithmetic number, because the mean of its divisors is an integer number (8463150).

Almost surely, 2^22568398 is an apocalyptic number.

22568398 is a deficient number, since it is larger than the sum of its proper divisors (11284202).

22568398 is a wasteful number, since it uses less digits than its factorization.

22568398 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11284201.

The product of its digits is 207360, while the sum is 43.

The square root of 22568398 is about 4750.6208015374. The cubic root of 22568398 is about 282.5965858685.

The spelling of 22568398 in words is "twenty-two million, five hundred sixty-eight thousand, three hundred ninety-eight".