838442074 has 16 divisors (see below), whose sum is σ = 1334064168. Its totient is φ = 393843712.

The previous prime is 838441991. The next prime is 838442081. The reversal of 838442074 is 470244838.

It can be written as a sum of positive squares in 4 ways, for example, as 450076225 + 388365849 = 21215^2 + 19707^2 .

It is a super-2 number, since 2×838442074² = 1405970222906842952, which contains 22 as substring.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 3199 + ... + 41074.

Almost surely, 2^838442074 is an apocalyptic number.

838442074 is a deficient number, since it is larger than the sum of its proper divisors (495622094).

838442074 is a wasteful number, since it uses less digits than its factorization.

838442074 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44849.

The product of its (nonzero) digits is 172032, while the sum is 40.

The square root of 838442074 is about 28955.8642419804. The cubic root of 838442074 is about 942.9551161714.

The spelling of 838442074 in words is "eight hundred thirty-eight million, four hundred forty-two thousand, seventy-four".