434342643 has 32 divisors (see below), whose sum is σ = 699912192. Its totient is φ = 234316800.

The previous prime is 434342633. The next prime is 434342647. The reversal of 434342643 is 346243434.

It is not a de Polignac number, because 434342643 - 2⁹ = 434342131 is a prime.

It is not an unprimeable number, because it can be changed into a prime (434342647) 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 31 ways as a sum of consecutive naturals, for example, 18555 + ... + 34827.

It is an arithmetic number, because the mean of its divisors is an integer number (21872256).

Almost surely, 2^434342643 is an apocalyptic number.

434342643 is a deficient number, since it is larger than the sum of its proper divisors (265569549).

434342643 is a wasteful number, since it uses less digits than its factorization.

434342643 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16355.

The product of its digits is 82944, while the sum is 33.

The square root of 434342643 is about 20840.8887286507. Note that the first 3 decimals coincide. The cubic root of 434342643 is about 757.3166234764.

The spelling of 434342643 in words is "four hundred thirty-four million, three hundred forty-two thousand, six hundred forty-three".