434322643 has 4 divisors (see below), whose sum is σ = 435635128. Its totient is φ = 433010160.

The previous prime is 434322631. The next prime is 434322673. The reversal of 434322643 is 346223434.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-434322643 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (434322673) 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, 655746 + ... + 656407.

It is an arithmetic number, because the mean of its divisors is an integer number (108908782).

Almost surely, 2^434322643 is an apocalyptic number.

434322643 is a deficient number, since it is larger than the sum of its proper divisors (1312485).

434322643 is a wasteful number, since it uses less digits than its factorization.

434322643 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1312484.

The product of its digits is 41472, while the sum is 31.

The square root of 434322643 is about 20840.4088971402. The cubic root of 434322643 is about 757.3049993472.

The spelling of 434322643 in words is "four hundred thirty-four million, three hundred twenty-two thousand, six hundred forty-three".