843749434 has 16 divisors (see below), whose sum is σ = 1440711360. Its totient is φ = 366847360.

The previous prime is 843749393. The next prime is 843749437. The reversal of 843749434 is 434947348.

It is a Harshad number since it is a multiple of its sum of digits (46).

It is not an unprimeable number, because it can be changed into a prime (843749437) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 833239 + ... + 834250.

It is an arithmetic number, because the mean of its divisors is an integer number (90044460).

Almost surely, 2^843749434 is an apocalyptic number.

843749434 is a deficient number, since it is larger than the sum of its proper divisors (596961926).

843749434 is a wasteful number, since it uses less digits than its factorization.

843749434 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1667525.

The product of its digits is 1161216, while the sum is 46.

The square root of 843749434 is about 29047.3653538492. The cubic root of 843749434 is about 944.9405761277.

The spelling of 843749434 in words is "eight hundred forty-three million, seven hundred forty-nine thousand, four hundred thirty-four".