422166100 has 72 divisors (see below), whose sum is σ = 979812288. Its totient is φ = 157324800.

The previous prime is 422166097. The next prime is 422166103. The reversal of 422166100 is 1661224.

It is an interprime number because it is at equal distance from previous prime (422166097) and next prime (422166103).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (422166103) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 173895 + ... + 176305.

It is an arithmetic number, because the mean of its divisors is an integer number (13608504).

Almost surely, 2^422166100 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 422166100, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (489906144).

422166100 is an abundant number, since it is smaller than the sum of its proper divisors (557646188).

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

422166100 is a wasteful number, since it uses less digits than its factorization.

422166100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2545 (or 2538 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 22.

The square root of 422166100 is about 20546.6809971830. The cubic root of 422166100 is about 750.1724640422.

The spelling of 422166100 in words is "four hundred twenty-two million, one hundred sixty-six thousand, one hundred".