22239469 has 4 divisors (see below), whose sum is σ = 25416544. Its totient is φ = 19062396.

The previous prime is 22239461. The next prime is 22239473. The reversal of 22239469 is 96493222.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 22239469 - 2³ = 22239461 is a prime.

It is a super-2 number, since 2×22239469² = 989187962803922, 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 (22239461) 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, 1588527 + ... + 1588540.

It is an arithmetic number, because the mean of its divisors is an integer number (6354136).

Almost surely, 2^22239469 is an apocalyptic number.

It is an amenable number.

22239469 is a deficient number, since it is larger than the sum of its proper divisors (3177075).

22239469 is an equidigital number, since it uses as much as digits as its factorization.

22239469 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3177074.

The product of its digits is 46656, while the sum is 37.

The square root of 22239469 is about 4715.8741501444. The cubic root of 22239469 is about 281.2169354381.

The spelling of 22239469 in words is "twenty-two million, two hundred thirty-nine thousand, four hundred sixty-nine".