22662439 has 4 divisors (see below), whose sum is σ = 22703256. Its totient is φ = 22621624.

The previous prime is 22662397. The next prime is 22662449. The reversal of 22662439 is 93426622.

It is a happy number.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-22662439 is a prime.

It is a super-2 number, since 2×22662439² = 1027172282857442, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22662449) 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, 19564 + ... + 20689.

It is an arithmetic number, because the mean of its divisors is an integer number (5675814).

Almost surely, 2^22662439 is an apocalyptic number.

22662439 is a deficient number, since it is larger than the sum of its proper divisors (40817).

22662439 is an equidigital number, since it uses as much as digits as its factorization.

22662439 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40816.

The product of its digits is 31104, while the sum is 34.

The square root of 22662439 is about 4760.5082711828. The cubic root of 22662439 is about 282.9885622617.

The spelling of 22662439 in words is "twenty-two million, six hundred sixty-two thousand, four hundred thirty-nine".