22688298 has 12 divisors (see below), whose sum is σ = 49158018. Its totient is φ = 7562760.

The previous prime is 22688287. The next prime is 22688321. The reversal of 22688298 is 89288622.

It can be written as a sum of positive squares in only one way, i.e., 16621929 + 6066369 = 4077^2 + 2463^2 .

It is a super-2 number, since 2×22688298² = 1029517732273608, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 630213 + ... + 630248.

Almost surely, 2^22688298 is an apocalyptic number.

22688298 is an abundant number, since it is smaller than the sum of its proper divisors (26469720).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

22688298 is a wasteful number, since it uses less digits than its factorization.

22688298 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1260469 (or 1260466 counting only the distinct ones).

The product of its digits is 221184, while the sum is 45.

The square root of 22688298 is about 4763.2234883532. The cubic root of 22688298 is about 283.0961561482.

The spelling of 22688298 in words is "twenty-two million, six hundred eighty-eight thousand, two hundred ninety-eight".