434330044021 has 4 divisors (see below), whose sum is σ = 434677787500. Its totient is φ = 433982300544.

The previous prime is 434330044013. The next prime is 434330044079. The reversal of 434330044021 is 120440033434.

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 72033192100 + 362296851921 = 268390^2 + 601911^2 .

It is a cyclic number.

It is not a de Polignac number, because 434330044021 - 2³ = 434330044013 is a prime.

It is a super-3 number, since 3×434330044021³ (a number of 36 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (434330044121) 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, 173869866 + ... + 173872363.

It is an arithmetic number, because the mean of its divisors is an integer number (108669446875).

Almost surely, 2^434330044021 is an apocalyptic number.

It is an amenable number.

434330044021 is a deficient number, since it is larger than the sum of its proper divisors (347743479).

434330044021 is a wasteful number, since it uses less digits than its factorization.

434330044021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 347743478.

The product of its (nonzero) digits is 13824, while the sum is 28.

Adding to 434330044021 its reverse (120440033434), we get a palindrome (554770077455).

The spelling of 434330044021 in words is "four hundred thirty-four billion, three hundred thirty million, forty-four thousand, twenty-one".