224122409 has 4 divisors (see below), whose sum is σ = 256139904. Its totient is φ = 192104916.

The previous prime is 224122399. The next prime is 224122427. The reversal of 224122409 is 904221422.

It is a happy number.

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 224122409 - 2²⁰ = 223073833 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (224122429) 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, 16008737 + ... + 16008750.

It is an arithmetic number, because the mean of its divisors is an integer number (64034976).

Almost surely, 2^224122409 is an apocalyptic number.

It is an amenable number.

224122409 is a deficient number, since it is larger than the sum of its proper divisors (32017495).

224122409 is an equidigital number, since it uses as much as digits as its factorization.

224122409 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32017494.

The product of its (nonzero) digits is 2304, while the sum is 26.

The square root of 224122409 is about 14970.7183862365. The cubic root of 224122409 is about 607.4284009619.

The spelling of 224122409 in words is "two hundred twenty-four million, one hundred twenty-two thousand, four hundred nine".