434010021 has 4 divisors (see below), whose sum is σ = 578680032. Its totient is φ = 289340012.

The previous prime is 434010019. The next prime is 434010047. The reversal of 434010021 is 120010434.

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 not a de Polignac number, because 434010021 - 2¹ = 434010019 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (434010001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 72335001 + ... + 72335006.

It is an arithmetic number, because the mean of its divisors is an integer number (144670008).

Almost surely, 2^434010021 is an apocalyptic number.

It is an amenable number.

434010021 is a deficient number, since it is larger than the sum of its proper divisors (144670011).

434010021 is a wasteful number, since it uses less digits than its factorization.

434010021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 144670010.

The product of its (nonzero) digits is 96, while the sum is 15.

The square root of 434010021 is about 20832.9071663078. The cubic root of 434010021 is about 757.1232550198.

Adding to 434010021 its reverse (120010434), we get a palindrome (554020455).

The spelling of 434010021 in words is "four hundred thirty-four million, ten thousand, twenty-one".