722934720 has 224 divisors, whose sum is σ = 2584338240. Its totient is φ = 192595968.

The previous prime is 722934703. The next prime is 722934721. The reversal of 722934720 is 27439227.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (722934721) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 699324 + ... + 700356.

Almost surely, 2^722934720 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 722934720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1292169120).

722934720 is an abundant number, since it is smaller than the sum of its proper divisors (1861403520).

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

722934720 is an equidigital number, since it uses as much as digits as its factorization.

722934720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1071 (or 1043 counting only the distinct ones).

The product of its (nonzero) digits is 42336, while the sum is 36.

The square root of 722934720 is about 26887.4453974341. The cubic root of 722934720 is about 897.4970455853.

The spelling of 722934720 in words is "seven hundred twenty-two million, nine hundred thirty-four thousand, seven hundred twenty".