722204218 has 8 divisors (see below), whose sum is σ = 1087802100. Its totient is φ = 359603520.

The previous prime is 722204141. The next prime is 722204227. The reversal of 722204218 is 812402227.

It can be written as a sum of positive squares in 2 ways, for example, as 720224569 + 1979649 = 26837^2 + 1407^2 .

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 (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 748693 + ... + 749656.

Almost surely, 2^722204218 is an apocalyptic number.

722204218 is a deficient number, since it is larger than the sum of its proper divisors (365597882).

722204218 is a wasteful number, since it uses less digits than its factorization.

722204218 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1498592.

The product of its (nonzero) digits is 3584, while the sum is 28.

The square root of 722204218 is about 26873.8575199021. The cubic root of 722204218 is about 897.1946465252.

The spelling of 722204218 in words is "seven hundred twenty-two million, two hundred four thousand, two hundred eighteen".