222368428 has 6 divisors (see below), whose sum is σ = 389144756. Its totient is φ = 111184212.

The previous prime is 222368423. The next prime is 222368429. The reversal of 222368428 is 824863222.

It is not an unprimeable number, because it can be changed into a prime (222368423) 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 as a sum of consecutive naturals, namely, 27796050 + ... + 27796057.

Almost surely, 2^222368428 is an apocalyptic number.

It is an amenable number.

222368428 is a deficient number, since it is larger than the sum of its proper divisors (166776328).

222368428 is a wasteful number, since it uses less digits than its factorization.

222368428 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55592111 (or 55592109 counting only the distinct ones).

The product of its digits is 73728, while the sum is 37.

The square root of 222368428 is about 14912.0229345317. The cubic root of 222368428 is about 605.8396719206.

The spelling of 222368428 in words is "two hundred twenty-two million, three hundred sixty-eight thousand, four hundred twenty-eight".