422100432 has 120 divisors (see below), whose sum is σ = 1277529344. Its totient is φ = 129330432.

The previous prime is 422100391. The next prime is 422100473. The reversal of 422100432 is 234001224.

It is an interprime number because it is at equal distance from previous prime (422100391) and next prime (422100473).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 866493 + ... + 866979.

Almost surely, 2^422100432 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 422100432, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (638764672).

422100432 is an abundant number, since it is smaller than the sum of its proper divisors (855428912).

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

422100432 is a wasteful number, since it uses less digits than its factorization.

422100432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 977 (or 968 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 18.

The square root of 422100432 is about 20545.0829153839. The cubic root of 422100432 is about 750.1335655456.

Adding to 422100432 its reverse (234001224), we get a palindrome (656101656).

The spelling of 422100432 in words is "four hundred twenty-two million, one hundred thousand, four hundred thirty-two".