422598 has 32 divisors (see below), whose sum is σ = 973440. Its totient is φ = 120960.

The previous prime is 422581. The next prime is 422621. The reversal of 422598 is 895224.

It is a Smith number, since the sum of its digits (30) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Curzon number.

It is a nialpdrome in base 15.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 422598.

It is an unprimeable number.

422598 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 in 15 ways as a sum of consecutive naturals, for example, 1086 + ... + 1422.

It is an arithmetic number, because the mean of its divisors is an integer number (30420).

2⁴²²⁵⁹⁸ is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 422598, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (486720).

422598 is an abundant number, since it is smaller than the sum of its proper divisors (550842).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

422598 is a wasteful number, since it uses less digits than its factorization.

422598 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 372.

The product of its digits is 5760, while the sum is 30.

The square root of 422598 is about 650.0753802445. The cubic root of 422598 is about 75.0428199924.

The spelling of 422598 in words is "four hundred twenty-two thousand, five hundred ninety-eight".