22872238 has 24 divisors (see below), whose sum is σ = 36758880. Its totient is φ = 10670400.

The previous prime is 22872211. The next prime is 22872247. The reversal of 22872238 is 83227822.

It is a super-2 number, since 2×22872238² = 1046278542257288, which contains 22 as substring.

It is a congruent number.

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 11 ways as a sum of consecutive naturals, for example, 56838 + ... + 57238.

It is an arithmetic number, because the mean of its divisors is an integer number (1531620).

Almost surely, 2^22872238 is an apocalyptic number.

22872238 is a deficient number, since it is larger than the sum of its proper divisors (13886642).

22872238 is a wasteful number, since it uses less digits than its factorization.

22872238 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 520 (or 501 counting only the distinct ones).

The product of its digits is 21504, while the sum is 34.

The square root of 22872238 is about 4782.4928646052. The cubic root of 22872238 is about 283.8591429384.

The spelling of 22872238 in words is "twenty-two million, eight hundred seventy-two thousand, two hundred thirty-eight".