722632 has 16 divisors (see below), whose sum is σ = 1378800. Its totient is φ = 354960.

The previous prime is 722611. The next prime is 722633. The reversal of 722632 is 236227.

It is a super-4 number, since 4×722632⁴ (a number of 25 digits) contains 4444 as substring.

It is not an unprimeable number, because it can be changed into a prime (722633) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 294 + ... + 1237.

It is an arithmetic number, because the mean of its divisors is an integer number (86175).

2⁷²²⁶³² is an apocalyptic number.

It is an amenable number.

722632 is a deficient number, since it is larger than the sum of its proper divisors (656168).

722632 is a wasteful number, since it uses less digits than its factorization.

722632 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1596 (or 1592 counting only the distinct ones).

The product of its digits is 1008, while the sum is 22.

The square root of 722632 is about 850.0776435126. The cubic root of 722632 is about 89.7371756155.

Adding to 722632 its reverse (236227), we get a palindrome (958859).

It can be divided in two parts, 72 and 2632, that added together give a square (2704 = 52²).

The spelling of 722632 in words is "seven hundred twenty-two thousand, six hundred thirty-two".