222494364 has 120 divisors (see below), whose sum is σ = 616751520. Its totient is φ = 69797376.

The previous prime is 222494353. The next prime is 222494417. The reversal of 222494364 is 463494222.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 543792 + ... + 544200.

It is an arithmetic number, because the mean of its divisors is an integer number (5139596).

Almost surely, 2^222494364 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 222494364, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (308375760).

222494364 is an abundant number, since it is smaller than the sum of its proper divisors (394257156).

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

222494364 is a wasteful number, since it uses less digits than its factorization.

222494364 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 521 (or 510 counting only the distinct ones).

The product of its digits is 82944, while the sum is 36.

The square root of 222494364 is about 14916.2449698307. The cubic root of 222494364 is about 605.9540206268.

The spelling of 222494364 in words is "two hundred twenty-two million, four hundred ninety-four thousand, three hundred sixty-four".