722848 has 36 divisors (see below), whose sum is σ = 1659042. Its totient is φ = 309120.

The previous prime is 722833. The next prime is 722849. The reversal of 722848 is 848227.

It can be written as a sum of positive squares in only one way, i.e., 659344 + 63504 = 812^2 + 252^2 .

It is a super-2 number, since 2×722848² = 1045018462208, which contains 22 as substring.

It is a nude number because it is divisible by every one of its digits.

It is not an unprimeable number, because it can be changed into a prime (722849) by changing a digit.

722848 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1338 + ... + 1798.

2⁷²²⁸⁴⁸ 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 722848, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (829521).

722848 is an abundant number, since it is smaller than the sum of its proper divisors (936194).

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

722848 is a wasteful number, since it uses less digits than its factorization.

722848 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 485 (or 470 counting only the distinct ones).

The product of its digits is 7168, while the sum is 31.

The square root of 722848 is about 850.2046812386. The cubic root of 722848 is about 89.7461157580.

The spelling of 722848 in words is "seven hundred twenty-two thousand, eight hundred forty-eight".