239224469 has 4 divisors (see below), whose sum is σ = 260972160. Its totient is φ = 217476780.

The previous prime is 239224441. The next prime is 239224477. The reversal of 239224469 is 964422932.

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 a de Polignac number, because none of the positive numbers 2^k-239224469 is a prime.

It is a super-2 number, since 2×239224469² = 114456693136663922, 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 (239224429) 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, 10873829 + ... + 10873850.

It is an arithmetic number, because the mean of its divisors is an integer number (65243040).

Almost surely, 2^239224469 is an apocalyptic number.

It is an amenable number.

239224469 is a deficient number, since it is larger than the sum of its proper divisors (21747691).

239224469 is a wasteful number, since it uses less digits than its factorization.

239224469 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21747690.

The product of its digits is 186624, while the sum is 41.

The square root of 239224469 is about 15466.8829762173. The cubic root of 239224469 is about 620.7764024649.

The spelling of 239224469 in words is "two hundred thirty-nine million, two hundred twenty-four thousand, four hundred sixty-nine".