422100 has 108 divisors (see below), whose sum is σ = 1534624. Its totient is φ = 95040.

The previous prime is 422099. The next prime is 422101. The reversal of 422100 is 1224.

It is an interprime number because it is at equal distance from previous prime (422099) and next prime (422101).

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a nialpdrome in base 10 and base 15.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (422101) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 6267 + ... + 6333.

2⁴²²¹⁰⁰ is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 422100, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (767312).

422100 is an abundant number, since it is smaller than the sum of its proper divisors (1112524).

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

422100 is a wasteful number, since it uses less digits than its factorization.

422100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 94 (or 84 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 9.

The square root of 422100 is about 649.6922348312. The cubic root of 422100 is about 75.0133309637.

Adding to 422100 its reverse (1224), we get a palindrome (423324).

The spelling of 422100 in words is "four hundred twenty-two thousand, one hundred", and thus it is an iban number.