22468739 has 4 divisors (see below), whose sum is σ = 22556424. Its totient is φ = 22381056.

The previous prime is 22468717. The next prime is 22468751. The reversal of 22468739 is 93786422.

It is a happy number.

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 22468739 - 2⁸ = 22468483 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 22468696 and 22468705.

It is not an unprimeable number, because it can be changed into a prime (22468709) 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, 43457 + ... + 43970.

It is an arithmetic number, because the mean of its divisors is an integer number (5639106).

Almost surely, 2^22468739 is an apocalyptic number.

22468739 is a deficient number, since it is larger than the sum of its proper divisors (87685).

22468739 is an equidigital number, since it uses as much as digits as its factorization.

22468739 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 87684.

The product of its digits is 145152, while the sum is 41.

The square root of 22468739 is about 4740.1201461566. The cubic root of 22468739 is about 282.1800026113.

The spelling of 22468739 in words is "twenty-two million, four hundred sixty-eight thousand, seven hundred thirty-nine".