838967642 has 8 divisors (see below), whose sum is σ = 1313166816. Its totient is φ = 401245372.

The previous prime is 838967621. The next prime is 838967671. The reversal of 838967642 is 246769838.

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9119168 + ... + 9119259.

It is an arithmetic number, because the mean of its divisors is an integer number (164145852).

Almost surely, 2^838967642 is an apocalyptic number.

838967642 is a deficient number, since it is larger than the sum of its proper divisors (474199174).

838967642 is a wasteful number, since it uses less digits than its factorization.

838967642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18238452.

The product of its digits is 3483648, while the sum is 53.

The square root of 838967642 is about 28964.9381494247. The cubic root of 838967642 is about 943.1521019600.

The spelling of 838967642 in words is "eight hundred thirty-eight million, nine hundred sixty-seven thousand, six hundred forty-two".