838439422 has 32 divisors (see below), whose sum is σ = 1372067424. Its totient is φ = 382694400.

The previous prime is 838439419. The next prime is 838439443. The reversal of 838439422 is 224934838.

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 15 ways as a sum of consecutive naturals, for example, 250653 + ... + 253975.

It is an arithmetic number, because the mean of its divisors is an integer number (42877107).

Almost surely, 2^838439422 is an apocalyptic number.

838439422 is a gapful number since it is divisible by the number (82) formed by its first and last digit.

838439422 is a deficient number, since it is larger than the sum of its proper divisors (533628002).

838439422 is a wasteful number, since it uses less digits than its factorization.

838439422 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3564.

The product of its digits is 331776, while the sum is 43.

The square root of 838439422 is about 28955.8184481116. The cubic root of 838439422 is about 942.9541219784.

The spelling of 838439422 in words is "eight hundred thirty-eight million, four hundred thirty-nine thousand, four hundred twenty-two".