222478426 has 8 divisors (see below), whose sum is σ = 334674900. Its totient is φ = 110920128.

The previous prime is 222478393. The next prime is 222478441. The reversal of 222478426 is 624874222.

It can be written as a sum of positive squares in 2 ways, for example, as 209525625 + 12952801 = 14475^2 + 3599^2 .

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

It is an unprimeable number.

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 in 3 ways as a sum of consecutive naturals, for example, 158671 + ... + 160066.

Almost surely, 2^222478426 is an apocalyptic number.

222478426 is a deficient number, since it is larger than the sum of its proper divisors (112196474).

222478426 is a wasteful number, since it uses less digits than its factorization.

222478426 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 319088.

The product of its digits is 86016, while the sum is 37.

The square root of 222478426 is about 14915.7107105226. The cubic root of 222478426 is about 605.9395514576.

The spelling of 222478426 in words is "two hundred twenty-two million, four hundred seventy-eight thousand, four hundred twenty-six".