222342456 has 128 divisors (see below), whose sum is σ = 679034880. Its totient is φ = 59222016.

The previous prime is 222342443. The next prime is 222342539. The reversal of 222342456 is 654243222.

It is a super-2 number, since 2×222342456² = 98872335480223872, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 362406 + ... + 363018.

It is an arithmetic number, because the mean of its divisors is an integer number (5304960).

Almost surely, 2^222342456 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 222342456, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (339517440).

222342456 is an abundant number, since it is smaller than the sum of its proper divisors (456692424).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

222342456 is a wasteful number, since it uses less digits than its factorization.

222342456 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 773 (or 769 counting only the distinct ones).

The product of its digits is 23040, while the sum is 30.

The square root of 222342456 is about 14911.1520681670. The cubic root of 222342456 is about 605.8160842186.

Adding to 222342456 its reverse (654243222), we get a palindrome (876585678).

The spelling of 222342456 in words is "two hundred twenty-two million, three hundred forty-two thousand, four hundred fifty-six".