422757 has 12 divisors (see below), whose sum is σ = 617760. Its totient is φ = 278568.

The previous prime is 422753. The next prime is 422759. The reversal of 422757 is 757224.

It is not a de Polignac number, because 422757 - 2² = 422753 is a prime.

It is a hoax number, since the sum of its digits (27) coincides with the sum of the digits of its distinct prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 422757.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (422753) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 744 + ... + 1182.

It is an arithmetic number, because the mean of its divisors is an integer number (51480).

2⁴²²⁷⁵⁷ is an apocalyptic number.

It is an amenable number.

422757 is a deficient number, since it is larger than the sum of its proper divisors (195003).

422757 is a wasteful number, since it uses less digits than its factorization.

422757 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 552 (or 549 counting only the distinct ones).

The product of its digits is 3920, while the sum is 27.

The square root of 422757 is about 650.1976622536. The cubic root of 422757 is about 75.0522302849.

The spelling of 422757 in words is "four hundred twenty-two thousand, seven hundred fifty-seven".