422345 has 16 divisors (see below), whose sum is σ = 632448. Its totient is φ = 263040.

The previous prime is 422339. The next prime is 422353. The reversal of 422345 is 543224.

It is not a de Polignac number, because 422345 - 2⁸ = 422089 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 164 + ... + 933.

It is an arithmetic number, because the mean of its divisors is an integer number (39528).

2⁴²²³⁴⁵ is an apocalyptic number.

It is an amenable number.

422345 is a deficient number, since it is larger than the sum of its proper divisors (210103).

422345 is a wasteful number, since it uses less digits than its factorization.

422345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1120.

The product of its digits is 960, while the sum is 20.

The square root of 422345 is about 649.8807582934. The cubic root of 422345 is about 75.0278415152.

Adding to 422345 its reverse (543224), we get a palindrome (965569).

It can be divided in two parts, 422 and 345, that added together give a palindrome (767).

The spelling of 422345 in words is "four hundred twenty-two thousand, three hundred forty-five".