22868286 has 32 divisors (see below), whose sum is σ = 55023360. Its totient is φ = 6189696.

The previous prime is 22868231. The next prime is 22868291. The reversal of 22868286 is 68286822.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13531 + ... + 15126.

It is an arithmetic number, because the mean of its divisors is an integer number (1719480).

Almost surely, 2^22868286 is an apocalyptic number.

22868286 is an abundant number, since it is smaller than the sum of its proper divisors (32155074).

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

22868286 is a wasteful number, since it uses less digits than its factorization.

22868286 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28688.

The product of its digits is 147456, while the sum is 42.

The square root of 22868286 is about 4782.0796731129. The cubic root of 22868286 is about 283.8427930451.

The spelling of 22868286 in words is "twenty-two million, eight hundred sixty-eight thousand, two hundred eighty-six".