722018304 has 168 divisors, whose sum is σ = 2385364800. Its totient is φ = 206143488.

The previous prime is 722018293. The next prime is 722018309. The reversal of 722018304 is 403810227.

It is a tau number, because it is divible by the number of its divisors (168).

It is a super-2 number, since 2×722018304² = 1042620862622072832, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (722018309) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 515397 + ... + 516795.

It is an arithmetic number, because the mean of its divisors is an integer number (14198600).

Almost surely, 2^722018304 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 722018304, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1192682400).

722018304 is an abundant number, since it is smaller than the sum of its proper divisors (1663346496).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

722018304 is a wasteful number, since it uses less digits than its factorization.

722018304 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1438 (or 1411 counting only the distinct ones).

The product of its (nonzero) digits is 2688, while the sum is 27.

The square root of 722018304 is about 26870.3982851018. The cubic root of 722018304 is about 897.1176529010.

The spelling of 722018304 in words is "seven hundred twenty-two million, eighteen thousand, three hundred four".