434104021 has 4 divisors (see below), whose sum is σ = 467496652. Its totient is φ = 400711392.

The previous prime is 434104007. The next prime is 434104043. The reversal of 434104021 is 120401434.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 271260900 + 162843121 = 16470^2 + 12761^2 .

It is a cyclic number.

It is not a de Polignac number, because 434104021 - 2¹³ = 434095829 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 434104021.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (434104051) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16696296 + ... + 16696321.

It is an arithmetic number, because the mean of its divisors is an integer number (116874163).

Almost surely, 2^434104021 is an apocalyptic number.

It is an amenable number.

434104021 is a deficient number, since it is larger than the sum of its proper divisors (33392631).

434104021 is a wasteful number, since it uses less digits than its factorization.

434104021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33392630.

The product of its (nonzero) digits is 384, while the sum is 19.

The square root of 434104021 is about 20835.1630903144. The cubic root of 434104021 is about 757.1779115524.

Adding to 434104021 its reverse (120401434), we get a palindrome (554505455).

The spelling of 434104021 in words is "four hundred thirty-four million, one hundred four thousand, twenty-one".