722800 has 60 divisors (see below), whose sum is σ = 1883560. Its totient is φ = 264960.

The previous prime is 722797. The next prime is 722807. The reversal of 722800 is 8227.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (722807) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5131 + ... + 5269.

2⁷²²⁸⁰⁰ 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 722800, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (941780).

722800 is an abundant number, since it is smaller than the sum of its proper divisors (1160760).

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

722800 is a wasteful number, since it uses less digits than its factorization.

722800 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 170 (or 159 counting only the distinct ones).

The product of its (nonzero) digits is 224, while the sum is 19.

The square root of 722800 is about 850.1764522733. The cubic root of 722800 is about 89.7441292136.

It can be divided in two parts, 722 and 800, that multiplied together give a square (577600 = 760²).

The spelling of 722800 in words is "seven hundred twenty-two thousand, eight hundred".