22476139 has 4 divisors (see below), whose sum is σ = 25687024. Its totient is φ = 19265256.

The previous prime is 22476137. The next prime is 22476169. The reversal of 22476139 is 93167422.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 22476139 - 2¹ = 22476137 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22476137) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1605432 + ... + 1605445.

It is an arithmetic number, because the mean of its divisors is an integer number (6421756).

Almost surely, 2^22476139 is an apocalyptic number.

22476139 is a deficient number, since it is larger than the sum of its proper divisors (3210885).

22476139 is an equidigital number, since it uses as much as digits as its factorization.

22476139 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3210884.

The product of its digits is 18144, while the sum is 34.

The square root of 22476139 is about 4740.9006528296. The cubic root of 22476139 is about 282.2109775408.

The spelling of 22476139 in words is "twenty-two million, four hundred seventy-six thousand, one hundred thirty-nine".