722730319740 has 1920 divisors, whose sum is σ = 3009662853120. Its totient is φ = 142331904000.

The previous prime is 722730319709. The next prime is 722730319741. The reversal of 722730319740 is 47913037227.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (722730319741) by changing a digit.

It is a polite number, since it can be written in 639 ways as a sum of consecutive naturals, for example, 7155745690 + ... + 7155745790.

It is an arithmetic number, because the mean of its divisors is an integer number (1567532736).

Almost surely, 2^722730319740 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 722730319740, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1504831426560).

722730319740 is an abundant number, since it is smaller than the sum of its proper divisors (2286932533380).

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

722730319740 is a wasteful number, since it uses less digits than its factorization.

722730319740 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 265 (or 254 counting only the distinct ones).

The product of its (nonzero) digits is 444528, while the sum is 45.

The spelling of 722730319740 in words is "seven hundred twenty-two billion, seven hundred thirty million, three hundred nineteen thousand, seven hundred forty".