8143938 has 24 divisors (see below), whose sum is σ = 19249776. Its totient is φ = 2467800.

The previous prime is 8143937. The next prime is 8143939. The reversal of 8143938 is 8393418.

It is an interprime number because it is at equal distance from previous prime (8143937) and next prime (8143939).

It is a super-2 number, since 2×8143938² = 132647452295688, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (8143931) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 20368 + ... + 20763.

It is an arithmetic number, because the mean of its divisors is an integer number (802074).

Almost surely, 2^8143938 is an apocalyptic number.

8143938 is an abundant number, since it is smaller than the sum of its proper divisors (11105838).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

8143938 is a wasteful number, since it uses less digits than its factorization.

8143938 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41150 (or 41147 counting only the distinct ones).

The product of its digits is 20736, while the sum is 36.

The square root of 8143938 is about 2853.7585742315. The cubic root of 8143938 is about 201.1923605877.

The spelling of 8143938 in words is "eight million, one hundred forty-three thousand, nine hundred thirty-eight".