222993472 has 84 divisors (see below), whose sum is σ = 489455460. Its totient is φ = 100718592.

The previous prime is 222993461. The next prime is 222993473. The reversal of 222993472 is 274399222.

It can be written as a sum of positive squares in 6 ways, for example, as 36288576 + 186704896 = 6024^2 + 13664^2 .

It is a super-2 number, since 2×222993472² = 99452177109229568, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (222993473) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 573054 + ... + 573442.

Almost surely, 2^222993472 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 222993472, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (244727730).

222993472 is an abundant number, since it is smaller than the sum of its proper divisors (266461988).

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

222993472 is a wasteful number, since it uses less digits than its factorization.

222993472 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 480 (or 457 counting only the distinct ones).

The product of its digits is 108864, while the sum is 40.

The square root of 222993472 is about 14932.9659478618. The cubic root of 222993472 is about 606.4067821103.

The spelling of 222993472 in words is "two hundred twenty-two million, nine hundred ninety-three thousand, four hundred seventy-two".