838434424 has 32 divisors (see below), whose sum is σ = 1666958400. Its totient is φ = 393984000.

The previous prime is 838434361. The next prime is 838434437. The reversal of 838434424 is 424434838.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 98032 + ... + 106240.

It is an arithmetic number, because the mean of its divisors is an integer number (52092450).

Almost surely, 2^838434424 is an apocalyptic number.

It is an amenable number.

838434424 is a deficient number, since it is larger than the sum of its proper divisors (828523976).

838434424 is a wasteful number, since it uses less digits than its factorization.

838434424 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8983 (or 8979 counting only the distinct ones).

The product of its digits is 294912, while the sum is 40.

The square root of 838434424 is about 28955.7321440850. The cubic root of 838434424 is about 942.9522483014.

The spelling of 838434424 in words is "eight hundred thirty-eight million, four hundred thirty-four thousand, four hundred twenty-four".