222224840 has 32 divisors (see below), whose sum is σ = 504603000. Its totient is φ = 88072704.

The previous prime is 222224839. The next prime is 222224843. The reversal of 222224840 is 48422222.

It can be written as a sum of positive squares in 4 ways, for example, as 160224964 + 61999876 = 12658^2 + 7874^2 .

It is not an unprimeable number, because it can be changed into a prime (222224843) 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, 21125 + ... + 29844.

Almost surely, 2^222224840 is an apocalyptic number.

222224840 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

222224840 is an abundant number, since it is smaller than the sum of its proper divisors (282378160).

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

222224840 is a wasteful number, since it uses less digits than its factorization.

222224840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51089 (or 51085 counting only the distinct ones).

The product of its (nonzero) digits is 4096, while the sum is 26.

The square root of 222224840 is about 14907.2076526759. The cubic root of 222224840 is about 605.7092426770.

The spelling of 222224840 in words is "two hundred twenty-two million, two hundred twenty-four thousand, eight hundred forty".