222286460 has 48 divisors (see below), whose sum is σ = 516251232. Its totient is φ = 79718400.

The previous prime is 222286459. The next prime is 222286483. The reversal of 222286460 is 64682222.

It is a super-2 number, since 2×222286460² = 98822540598663200, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9140 + ... + 22980.

It is an arithmetic number, because the mean of its divisors is an integer number (10755234).

Almost surely, 2^222286460 is an apocalyptic number.

222286460 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 222286460, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (258125616).

222286460 is an abundant number, since it is smaller than the sum of its proper divisors (293964772).

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

222286460 is a wasteful number, since it uses less digits than its factorization.

222286460 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13934 (or 13932 counting only the distinct ones).

The product of its (nonzero) digits is 18432, while the sum is 32.

The square root of 222286460 is about 14909.2742948810. The cubic root of 222286460 is about 605.7652225490.

It can be divided in two parts, 222 and 286460, that added together give a palindrome (286682).

The spelling of 222286460 in words is "two hundred twenty-two million, two hundred eighty-six thousand, four hundred sixty".