434500421 has 4 divisors (see below), whose sum is σ = 435408000. Its totient is φ = 433592844.

The previous prime is 434500397. The next prime is 434500439. The reversal of 434500421 is 124005434.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-434500421 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (434500471) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 453071 + ... + 454028.

It is an arithmetic number, because the mean of its divisors is an integer number (108852000).

Almost surely, 2^434500421 is an apocalyptic number.

It is an amenable number.

434500421 is a deficient number, since it is larger than the sum of its proper divisors (907579).

434500421 is an equidigital number, since it uses as much as digits as its factorization.

434500421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 907578.

The product of its (nonzero) digits is 1920, while the sum is 23.

The square root of 434500421 is about 20844.6736841813. The cubic root of 434500421 is about 757.4083125601.

Adding to 434500421 its reverse (124005434), we get a palindrome (558505855).

The spelling of 434500421 in words is "four hundred thirty-four million, five hundred thousand, four hundred twenty-one".