222506464 has 48 divisors (see below), whose sum is σ = 452390400. Its totient is φ = 107673984.

The previous prime is 222506441. The next prime is 222506491. The reversal of 222506464 is 464605222.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 125617 + ... + 127375.

It is an arithmetic number, because the mean of its divisors is an integer number (9424800).

Almost surely, 2^222506464 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 222506464, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (226195200).

222506464 is an abundant number, since it is smaller than the sum of its proper divisors (229883936).

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

222506464 is a wasteful number, since it uses less digits than its factorization.

222506464 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1895 (or 1887 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 31.

The square root of 222506464 is about 14916.6505623749. The cubic root of 222506464 is about 605.9650050409.

The spelling of 222506464 in words is "two hundred twenty-two million, five hundred six thousand, four hundred sixty-four".