722145746 has 16 divisors (see below), whose sum is σ = 1245562944. Its totient is φ = 307591344.

The previous prime is 722145731. The next prime is 722145763. The reversal of 722145746 is 647541227.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 155945 + ... + 160508.

It is an arithmetic number, because the mean of its divisors is an integer number (77847684).

Almost surely, 2^722145746 is an apocalyptic number.

722145746 is a deficient number, since it is larger than the sum of its proper divisors (523417198).

722145746 is a wasteful number, since it uses less digits than its factorization.

722145746 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 316625.

The product of its digits is 94080, while the sum is 38.

The square root of 722145746 is about 26872.7696004710. The cubic root of 722145746 is about 897.1704326072.

The spelling of 722145746 in words is "seven hundred twenty-two million, one hundred forty-five thousand, seven hundred forty-six".