22342439 has 4 divisors (see below), whose sum is σ = 25534224. Its totient is φ = 19150656.

The previous prime is 22342433. The next prime is 22342447. The reversal of 22342439 is 93424322.

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

It is not a de Polignac number, because 22342439 - 2⁸ = 22342183 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22342433) 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, 1595882 + ... + 1595895.

It is an arithmetic number, because the mean of its divisors is an integer number (6383556).

Almost surely, 2^22342439 is an apocalyptic number.

22342439 is a deficient number, since it is larger than the sum of its proper divisors (3191785).

22342439 is an equidigital number, since it uses as much as digits as its factorization.

22342439 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3191784.

The product of its digits is 10368, while the sum is 29.

The square root of 22342439 is about 4726.7789243839. The cubic root of 22342439 is about 281.6502840901.

The spelling of 22342439 in words is "twenty-two million, three hundred forty-two thousand, four hundred thirty-nine".