22138862 has 8 divisors (see below), whose sum is σ = 35161776. Its totient is φ = 10418272.

The previous prime is 22138859. The next prime is 22138871. The reversal of 22138862 is 26883122.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 325538 + ... + 325605.

It is an arithmetic number, because the mean of its divisors is an integer number (4395222).

Almost surely, 2^22138862 is an apocalyptic number.

22138862 is a deficient number, since it is larger than the sum of its proper divisors (13022914).

22138862 is a wasteful number, since it uses less digits than its factorization.

22138862 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 651162.

The product of its digits is 9216, while the sum is 32.

The square root of 22138862 is about 4705.1952138036. The cubic root of 22138862 is about 280.7922376055.

It can be divided in two parts, 2 and 2138862, that multiplied together give a palindrome (4277724).

The spelling of 22138862 in words is "twenty-two million, one hundred thirty-eight thousand, eight hundred sixty-two".