421421034 has 16 divisors (see below), whose sum is σ = 848907360. Its totient is φ = 139462800.

The previous prime is 421421029. The next prime is 421421047. The reversal of 421421034 is 430124124.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 421421034.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 251817 + ... + 253484.

It is an arithmetic number, because the mean of its divisors is an integer number (53056710).

Almost surely, 2^421421034 is an apocalyptic number.

421421034 is an abundant number, since it is smaller than the sum of its proper divisors (427486326).

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

421421034 is a wasteful number, since it uses less digits than its factorization.

421421034 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 505445.

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

The square root of 421421034 is about 20528.5419355589. The cubic root of 421421034 is about 749.7308865599.

Adding to 421421034 its reverse (430124124), we get a palindrome (851545158).

The spelling of 421421034 in words is "four hundred twenty-one million, four hundred twenty-one thousand, thirty-four".