222404460 has 24 divisors (see below), whose sum is σ = 622732656. Its totient is φ = 59307840.

The previous prime is 222404407. The next prime is 222404477. The reversal of 222404460 is 64404222.

It is a self number, because there is not a number n which added to its sum of digits gives 222404460.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1853311 + ... + 1853430.

It is an arithmetic number, because the mean of its divisors is an integer number (25947194).

Almost surely, 2^222404460 is an apocalyptic number.

222404460 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

222404460 is an abundant number, since it is smaller than the sum of its proper divisors (400328196).

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

222404460 is a wasteful number, since it uses less digits than its factorization.

222404460 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3706753 (or 3706751 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 24.

The square root of 222404460 is about 14913.2310382425. The cubic root of 222404460 is about 605.8723930466.

Adding to 222404460 its reverse (64404222), we get a palindrome (286808682).

The spelling of 222404460 in words is "two hundred twenty-two million, four hundred four thousand, four hundred sixty".