722748290 has 16 divisors (see below), whose sum is σ = 1419215040. Its totient is φ = 262817520.

The previous prime is 722748241. The next prime is 722748293. The reversal of 722748290 is 92847227.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (722748293) 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 7 ways as a sum of consecutive naturals, for example, 3285110 + ... + 3285329.

It is an arithmetic number, because the mean of its divisors is an integer number (88700940).

Almost surely, 2^722748290 is an apocalyptic number.

722748290 is a deficient number, since it is larger than the sum of its proper divisors (696466750).

722748290 is a wasteful number, since it uses less digits than its factorization.

722748290 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6570457.

The product of its (nonzero) digits is 112896, while the sum is 41.

The square root of 722748290 is about 26883.9783142302. The cubic root of 722748290 is about 897.4198902745.

The spelling of 722748290 in words is "seven hundred twenty-two million, seven hundred forty-eight thousand, two hundred ninety".