722636036 has 12 divisors (see below), whose sum is σ = 1308220620. Its totient is φ = 348858720.

The previous prime is 722636003. The next prime is 722636039. The reversal of 722636036 is 630636227.

It can be written as a sum of positive squares in 2 ways, for example, as 495952900 + 226683136 = 22270^2 + 15056^2 .

It is a junction number, because it is equal to n+sod(n) for n = 722635987 and 722636005.

It is not an unprimeable number, because it can be changed into a prime (722636039) 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 in 3 ways as a sum of consecutive naturals, for example, 3114695 + ... + 3114926.

It is an arithmetic number, because the mean of its divisors is an integer number (109018385).

Almost surely, 2^722636036 is an apocalyptic number.

It is an amenable number.

722636036 is a deficient number, since it is larger than the sum of its proper divisors (585584584).

722636036 is a wasteful number, since it uses less digits than its factorization.

722636036 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6229654 (or 6229652 counting only the distinct ones).

The product of its (nonzero) digits is 54432, while the sum is 35.

The square root of 722636036 is about 26881.8904841159. The cubic root of 722636036 is about 897.3734268009.

The spelling of 722636036 in words is "seven hundred twenty-two million, six hundred thirty-six thousand, thirty-six".