722255770 has 8 divisors (see below), whose sum is σ = 1300060404. Its totient is φ = 288902304.

The previous prime is 722255767. The next prime is 722255777. The reversal of 722255770 is 77552227.

It can be written as a sum of positive squares in 2 ways, for example, as 716258169 + 5997601 = 26763^2 + 2449^2 .

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 (722255777) by changing a digit.

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, 36112779 + ... + 36112798.

Almost surely, 2^722255770 is an apocalyptic number.

722255770 is a deficient number, since it is larger than the sum of its proper divisors (577804634).

722255770 is a wasteful number, since it uses less digits than its factorization.

722255770 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72225584.

The product of its (nonzero) digits is 68600, while the sum is 37.

The square root of 722255770 is about 26874.8166505374. The cubic root of 722255770 is about 897.2159937087.

The spelling of 722255770 in words is "seven hundred twenty-two million, two hundred fifty-five thousand, seven hundred seventy".