222286240 has 96 divisors (see below), whose sum is σ = 583946496. Its totient is φ = 79272960.

The previous prime is 222286231. The next prime is 222286243. The reversal of 222286240 is 42682222.

It is a super-2 number, since 2×222286240² = 98822344986675200, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 222286199 and 222286208.

It is not an unprimeable number, because it can be changed into a prime (222286243) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 92089 + ... + 94471.

It is an arithmetic number, because the mean of its divisors is an integer number (6082776).

Almost surely, 2^222286240 is an apocalyptic number.

222286240 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 222286240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (291973248).

222286240 is an abundant number, since it is smaller than the sum of its proper divisors (361660256).

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

222286240 is a wasteful number, since it uses less digits than its factorization.

222286240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2462 (or 2454 counting only the distinct ones).

The product of its (nonzero) digits is 6144, while the sum is 28.

The square root of 222286240 is about 14909.2669169212. The cubic root of 222286240 is about 605.7650227041.

The spelling of 222286240 in words is "two hundred twenty-two million, two hundred eighty-six thousand, two hundred forty".