722358 has 80 divisors (see below), whose sum is σ = 2032800. Its totient is φ = 190512.

The previous prime is 722353. The next prime is 722363. The reversal of 722358 is 853227.

722358 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (722353) and next prime (722363).

It is a Harshad number since it is a multiple of its sum of digits (27).

Its product of digits (3360) is a multiple of the sum of its prime factors (48).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (722353) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 55560 + ... + 55572.

It is an arithmetic number, because the mean of its divisors is an integer number (25410).

2⁷²²³⁵⁸ is an apocalyptic number.

722358 is a gapful number since it is divisible by the number (78) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 722358, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1016400).

722358 is an abundant number, since it is smaller than the sum of its proper divisors (1310442).

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

722358 is a wasteful number, since it uses less digits than its factorization.

722358 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48 (or 25 counting only the distinct ones).

The product of its digits is 3360, while the sum is 27.

The square root of 722358 is about 849.9164664836. The cubic root of 722358 is about 89.7258323157.

The spelling of 722358 in words is "seven hundred twenty-two thousand, three hundred fifty-eight".