222878800 has 30 divisors (see below), whose sum is σ = 535467278. Its totient is φ = 89151360.

The previous prime is 222878779. The next prime is 222878837. The reversal of 222878800 is 8878222.

It can be written as a sum of positive squares in 3 ways, for example, as 2534464 + 220344336 = 1592^2 + 14844^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 222878800.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 278199 + ... + 278998.

Almost surely, 2^222878800 is an apocalyptic number.

222878800 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

222878800 is an abundant number, since it is smaller than the sum of its proper divisors (312588478).

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

222878800 is a wasteful number, since it uses less digits than its factorization.

222878800 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 557215 (or 557204 counting only the distinct ones).

The product of its (nonzero) digits is 28672, while the sum is 37.

The square root of 222878800 is about 14929.1258953765. The cubic root of 222878800 is about 606.3028182274.

The spelling of 222878800 in words is "two hundred twenty-two million, eight hundred seventy-eight thousand, eight hundred".