421410234 has 64 divisors (see below), whose sum is σ = 1037583360. Its totient is φ = 111404160.

The previous prime is 421410233. The next prime is 421410247. The reversal of 421410234 is 432014124.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a self number, because there is not a number n which added to its sum of digits gives 421410234.

It is not an unprimeable number, because it can be changed into a prime (421410233) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 28174 + ... + 40454.

It is an arithmetic number, because the mean of its divisors is an integer number (16212240).

Almost surely, 2^421410234 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 421410234, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (518791680).

421410234 is an abundant number, since it is smaller than the sum of its proper divisors (616173126).

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

421410234 is a wasteful number, since it uses less digits than its factorization.

421410234 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12355.

The product of its (nonzero) digits is 768, while the sum is 21.

The square root of 421410234 is about 20528.2788854789. The cubic root of 421410234 is about 749.7244819099.

Adding to 421410234 its reverse (432014124), we get a palindrome (853424358).

The spelling of 421410234 in words is "four hundred twenty-one million, four hundred ten thousand, two hundred thirty-four".