421130434 has 32 divisors (see below), whose sum is σ = 667408896. Its totient is φ = 199073280.

The previous prime is 421130429. The next prime is 421130449. The reversal of 421130434 is 434031124.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 435019 + ... + 435985.

It is an arithmetic number, because the mean of its divisors is an integer number (20856528).

Almost surely, 2^421130434 is an apocalyptic number.

421130434 is a deficient number, since it is larger than the sum of its proper divisors (246278462).

421130434 is a wasteful number, since it uses less digits than its factorization.

421130434 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1170.

The product of its (nonzero) digits is 1152, while the sum is 22.

The square root of 421130434 is about 20521.4627646277. The cubic root of 421130434 is about 749.5585158771.

Adding to 421130434 its reverse (434031124), we get a palindrome (855161558).

The spelling of 421130434 in words is "four hundred twenty-one million, one hundred thirty thousand, four hundred thirty-four".