222434391 has 4 divisors (see below), whose sum is σ = 296579192. Its totient is φ = 148289592.

The previous prime is 222434363. The next prime is 222434413. The reversal of 222434391 is 193434222.

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

It is not a de Polignac number, because 222434391 - 2²⁵ = 188879959 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 (222434291) 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, 37072396 + ... + 37072401.

It is an arithmetic number, because the mean of its divisors is an integer number (74144798).

Almost surely, 2^222434391 is an apocalyptic number.

222434391 is a deficient number, since it is larger than the sum of its proper divisors (74144801).

222434391 is an equidigital number, since it uses as much as digits as its factorization.

222434391 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 74144800.

The product of its digits is 10368, while the sum is 30.

The square root of 222434391 is about 14914.2345093538. The cubic root of 222434391 is about 605.8995710885.

The spelling of 222434391 in words is "two hundred twenty-two million, four hundred thirty-four thousand, three hundred ninety-one".