222844560 has 80 divisors (see below), whose sum is σ = 692473536. Its totient is φ = 59282944.

The previous prime is 222844507. The next prime is 222844603. The reversal of 222844560 is 65448222.

It is a tau number, because it is divible by the number of its divisors (80).

It is an unprimeable number.

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, 132847 + ... + 134513.

Almost surely, 2^222844560 is an apocalyptic number.

222844560 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 222844560, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (346236768).

222844560 is an abundant number, since it is smaller than the sum of its proper divisors (469628976).

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

222844560 is a wasteful number, since it uses less digits than its factorization.

222844560 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2240 (or 2234 counting only the distinct ones).

The product of its (nonzero) digits is 30720, while the sum is 33.

The square root of 222844560 is about 14927.9790996638. The cubic root of 222844560 is about 606.2717686589.

The spelling of 222844560 in words is "two hundred twenty-two million, eight hundred forty-four thousand, five hundred sixty".