222724324 has 12 divisors (see below), whose sum is σ = 390091324. Its totient is φ = 111269664.

The previous prime is 222724309. The next prime is 222724357. The reversal of 222724324 is 423427222.

It can be written as a sum of positive squares in 2 ways, for example, as 73102500 + 149621824 = 8550^2 + 12232^2 .

It is a super-2 number, since 2×222724324² = 99212249002513952, which contains 22 as substring.

It is a hoax number, since the sum of its digits (28) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 222724292 and 222724301.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17559 + ... + 27454.

Almost surely, 2^222724324 is an apocalyptic number.

It is an amenable number.

222724324 is a deficient number, since it is larger than the sum of its proper divisors (167367000).

222724324 is a wasteful number, since it uses less digits than its factorization.

222724324 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46254 (or 46252 counting only the distinct ones).

The product of its digits is 10752, while the sum is 28.

The square root of 222724324 is about 14923.9513534452. The cubic root of 222724324 is about 606.1627108675.

The spelling of 222724324 in words is "two hundred twenty-two million, seven hundred twenty-four thousand, three hundred twenty-four".