222180460 has 48 divisors (see below), whose sum is σ = 488307456. Its totient is φ = 84756672.

The previous prime is 222180457. The next prime is 222180461. The reversal of 222180460 is 64081222.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (222180461) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 251179 + ... + 252061.

It is an arithmetic number, because the mean of its divisors is an integer number (10173072).

Almost surely, 2^222180460 is an apocalyptic number.

222180460 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 222180460, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (244153728).

222180460 is an abundant number, since it is smaller than the sum of its proper divisors (266126996).

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

222180460 is a wasteful number, since it uses less digits than its factorization.

222180460 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1462 (or 1460 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 25.

The square root of 222180460 is about 14905.7190366651. The cubic root of 222180460 is about 605.6689184032.

The spelling of 222180460 in words is "two hundred twenty-two million, one hundred eighty thousand, four hundred sixty".