422102412 has 72 divisors (see below), whose sum is σ = 1091563200. Its totient is φ = 137494368.

The previous prime is 422102411. The next prime is 422102413. The reversal of 422102412 is 214201224.

422102412 is a `hidden beast` number, since 42 + 210 + 2 + 412 = 666.

It is an interprime number because it is at equal distance from previous prime (422102411) and next prime (422102413).

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

It is not an unprimeable number, because it can be changed into a prime (422102411) 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, 334639 + ... + 335897.

It is an arithmetic number, because the mean of its divisors is an integer number (15160600).

Almost surely, 2^422102412 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 422102412, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (545781600).

422102412 is an abundant number, since it is smaller than the sum of its proper divisors (669460788).

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

422102412 is a wasteful number, since it uses less digits than its factorization.

422102412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1475 (or 1470 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 18.

The square root of 422102412 is about 20545.1311020397. The cubic root of 422102412 is about 750.1347384593.

Adding to 422102412 its reverse (214201224), we get a palindrome (636303636).

The spelling of 422102412 in words is "four hundred twenty-two million, one hundred two thousand, four hundred twelve".