22130286 has 16 divisors (see below), whose sum is σ = 44370768. Its totient is φ = 7358400.

The previous prime is 22130281. The next prime is 22130287. The reversal of 22130286 is 68203122.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22130281) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1855 + ... + 6906.

It is an arithmetic number, because the mean of its divisors is an integer number (2773173).

Almost surely, 2^22130286 is an apocalyptic number.

22130286 is an abundant number, since it is smaller than the sum of its proper divisors (22240482).

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

22130286 is a wasteful number, since it uses less digits than its factorization.

22130286 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9187.

The product of its (nonzero) digits is 1152, while the sum is 24.

The square root of 22130286 is about 4704.2837924598. The cubic root of 22130286 is about 280.7559758013.

The spelling of 22130286 in words is "twenty-two million, one hundred thirty thousand, two hundred eighty-six".