222923828 has 6 divisors (see below), whose sum is σ = 390116706. Its totient is φ = 111461912.

The previous prime is 222923809. The next prime is 222923881. The reversal of 222923828 is 828329222.

It can be written as a sum of positive squares in only one way, i.e., 169312144 + 53611684 = 13012^2 + 7322^2 .

It is a junction number, because it is equal to n+sod(n) for n = 222923791 and 222923800.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27865475 + ... + 27865482.

It is an arithmetic number, because the mean of its divisors is an integer number (65019451).

Almost surely, 2^222923828 is an apocalyptic number.

It is an amenable number.

222923828 is a deficient number, since it is larger than the sum of its proper divisors (167192878).

222923828 is a wasteful number, since it uses less digits than its factorization.

222923828 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55730961 (or 55730959 counting only the distinct ones).

The product of its digits is 55296, while the sum is 38.

The square root of 222923828 is about 14930.6338780375. The cubic root of 222923828 is about 606.3436457459.

The spelling of 222923828 in words is "two hundred twenty-two million, nine hundred twenty-three thousand, eight hundred twenty-eight".