722768040 has 96 divisors (see below), whose sum is σ = 2352430080. Its totient is φ = 192456576.

The previous prime is 722768029. The next prime is 722768041. The reversal of 722768040 is 40867227.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 722767986 and 722768004.

It is not an unprimeable number, because it can be changed into a prime (722768041) 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 23 ways as a sum of consecutive naturals, for example, 390397 + ... + 392243.

It is an arithmetic number, because the mean of its divisors is an integer number (24504480).

Almost surely, 2^722768040 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 722768040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1176215040).

722768040 is an abundant number, since it is smaller than the sum of its proper divisors (1629662040).

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

722768040 is a wasteful number, since it uses less digits than its factorization.

722768040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2951 (or 2944 counting only the distinct ones).

The product of its (nonzero) digits is 37632, while the sum is 36.

The square root of 722768040 is about 26884.3456308685. The cubic root of 722768040 is about 897.4280645733.

The spelling of 722768040 in words is "seven hundred twenty-two million, seven hundred sixty-eight thousand, forty".