722046780 has 288 divisors, whose sum is σ = 2855309184. Its totient is φ = 143327232.

The previous prime is 722046769. The next prime is 722046811. The reversal of 722046780 is 87640227.

722046780 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 277164 + ... + 279756.

It is an arithmetic number, because the mean of its divisors is an integer number (9914268).

Almost surely, 2^722046780 is an apocalyptic number.

722046780 is a gapful number since it is divisible by the number (70) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 722046780, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1427654592).

722046780 is an abundant number, since it is smaller than the sum of its proper divisors (2133262404).

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

722046780 is a wasteful number, since it uses less digits than its factorization.

722046780 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2645 (or 2640 counting only the distinct ones).

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

The square root of 722046780 is about 26870.9281566529. The cubic root of 722046780 is about 897.1294466862.

The spelling of 722046780 in words is "seven hundred twenty-two million, forty-six thousand, seven hundred eighty".