222478858 has 8 divisors (see below), whose sum is σ = 381392352. Its totient is φ = 95348076.

The previous prime is 222478843. The next prime is 222478859. The reversal of 222478858 is 858874222.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (222478859) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7945660 + ... + 7945687.

It is an arithmetic number, because the mean of its divisors is an integer number (47674044).

Almost surely, 2^222478858 is an apocalyptic number.

222478858 is a deficient number, since it is larger than the sum of its proper divisors (158913494).

222478858 is a wasteful number, since it uses less digits than its factorization.

222478858 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15891356.

The product of its digits is 573440, while the sum is 46.

The square root of 222478858 is about 14915.7251918906. The cubic root of 222478858 is about 605.9399436540.

The spelling of 222478858 in words is "two hundred twenty-two million, four hundred seventy-eight thousand, eight hundred fifty-eight".