426722 has 4 divisors (see below), whose sum is σ = 640086. Its totient is φ = 213360.

The previous prime is 426709. The next prime is 426731. The reversal of 426722 is 227624.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 398161 + 28561 = 631^2 + 169^2 .

It is an unprimeable number.

426722 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 as a sum of consecutive naturals, namely, 106679 + ... + 106682.

2⁴²⁶⁷²² is an apocalyptic number.

426722 is a deficient number, since it is larger than the sum of its proper divisors (213364).

426722 is a wasteful number, since it uses less digits than its factorization.

426722 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 213363.

The product of its digits is 1344, while the sum is 23.

The square root of 426722 is about 653.2396191292. The cubic root of 426722 is about 75.2861365861.

The spelling of 426722 in words is "four hundred twenty-six thousand, seven hundred twenty-two".