422681 has 4 divisors (see below), whose sum is σ = 483072. Its totient is φ = 362292.

The previous prime is 422657. The next prime is 422689. The reversal of 422681 is 186224.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 422681 - 2¹⁰ = 421657 is a prime.

It is a super-2 number, since 2×422681² = 357318455522, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (422689) 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, 30185 + ... + 30198.

It is an arithmetic number, because the mean of its divisors is an integer number (120768).

2⁴²²⁶⁸¹ is an apocalyptic number.

It is an amenable number.

422681 is a deficient number, since it is larger than the sum of its proper divisors (60391).

422681 is an equidigital number, since it uses as much as digits as its factorization.

422681 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60390.

The product of its digits is 768, while the sum is 23.

The square root of 422681 is about 650.1392158607. The cubic root of 422681 is about 75.0477325779.

The spelling of 422681 in words is "four hundred twenty-two thousand, six hundred eighty-one".