222490960 has 40 divisors (see below), whose sum is σ = 539786880. Its totient is φ = 85126272.

The previous prime is 222490943. The next prime is 222490967. The reversal of 222490960 is 69094222.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (40).

It is a hoax number, since the sum of its digits (34) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (222490967) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 58620 + ... + 62299.

It is an arithmetic number, because the mean of its divisors is an integer number (13494672).

Almost surely, 2^222490960 is an apocalyptic number.

222490960 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

222490960 is an abundant number, since it is smaller than the sum of its proper divisors (317295920).

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

222490960 is a wasteful number, since it uses less digits than its factorization.

222490960 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 120955 (or 120949 counting only the distinct ones).

The product of its (nonzero) digits is 15552, while the sum is 34.

The square root of 222490960 is about 14916.1308656099. The cubic root of 222490960 is about 605.9509303942.

The spelling of 222490960 in words is "two hundred twenty-two million, four hundred ninety thousand, nine hundred sixty".