222660480 has 128 divisors (see below), whose sum is σ = 811169280. Its totient is φ = 50890752.

The previous prime is 222660469. The next prime is 222660481. The reversal of 222660480 is 84066222.

It is a tau number, because it is divible by the number of its divisors (128).

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (222660481) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5157 + ... + 21723.

It is an arithmetic number, because the mean of its divisors is an integer number (6337260).

Almost surely, 2^222660480 is an apocalyptic number.

222660480 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 222660480, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (405584640).

222660480 is an abundant number, since it is smaller than the sum of its proper divisors (588508800).

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

222660480 is a wasteful number, since it uses less digits than its factorization.

222660480 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16596 (or 16584 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 30.

The square root of 222660480 is about 14921.8122223810. The cubic root of 222660480 is about 606.1047864197.

The spelling of 222660480 in words is "two hundred twenty-two million, six hundred sixty thousand, four hundred eighty".