722258 has 8 divisors (see below), whose sum is σ = 1088640. Its totient is φ = 359380.

The previous prime is 722257. The next prime is 722273. The reversal of 722258 is 852227.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (722257) 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, 278 + ... + 1233.

It is an arithmetic number, because the mean of its divisors is an integer number (136080).

2⁷²²²⁵⁸ is an apocalyptic number.

722258 is a deficient number, since it is larger than the sum of its proper divisors (366382).

722258 is a wasteful number, since it uses less digits than its factorization.

722258 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1752.

The product of its digits is 2240, while the sum is 26.

The square root of 722258 is about 849.8576351366. The cubic root of 722258 is about 89.7216917107.

The spelling of 722258 in words is "seven hundred twenty-two thousand, two hundred fifty-eight".