222422428 has 6 divisors (see below), whose sum is σ = 389239256. Its totient is φ = 111211212.

The previous prime is 222422383. The next prime is 222422491. The reversal of 222422428 is 824224222.

222422428 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 222422396 and 222422405.

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, 27802800 + ... + 27802807.

Almost surely, 2^222422428 is an apocalyptic number.

It is an amenable number.

222422428 is a deficient number, since it is larger than the sum of its proper divisors (166816828).

222422428 is a wasteful number, since it uses less digits than its factorization.

222422428 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55605611 (or 55605609 counting only the distinct ones).

The product of its digits is 8192, while the sum is 28.

The square root of 222422428 is about 14913.8334441551. The cubic root of 222422428 is about 605.8887086997. Note that the first 3 decimals are identical.

The spelling of 222422428 in words is "two hundred twenty-two million, four hundred twenty-two thousand, four hundred twenty-eight".