722338 has 16 divisors (see below), whose sum is σ = 1161216. Its totient is φ = 336160.

The previous prime is 722333. The next prime is 722341. The reversal of 722338 is 833227.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (722333) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1695 + ... + 2077.

It is an arithmetic number, because the mean of its divisors is an integer number (72576).

2⁷²²³³⁸ is an apocalyptic number.

722338 is a deficient number, since it is larger than the sum of its proper divisors (438878).

722338 is a wasteful number, since it uses less digits than its factorization.

722338 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 449.

The product of its digits is 2016, while the sum is 25.

The square root of 722338 is about 849.9047005400. The cubic root of 722338 is about 89.7250042252.

Subtracting 722338 from its reverse (833227), we obtain a square (110889 = 333²).

It can be divided in two parts, 722 and 338, that multiplied together give a square (244036 = 494²).

The spelling of 722338 in words is "seven hundred twenty-two thousand, three hundred thirty-eight".