8199942 has 8 divisors (see below), whose sum is σ = 16399896. Its totient is φ = 2733312.

The previous prime is 8199941. The next prime is 8199943. The reversal of 8199942 is 2499918.

It is an interprime number because it is at equal distance from previous prime (8199941) and next prime (8199943).

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

8199942 is an admirable number.

It is a junction number, because it is equal to n+sod(n) for n = 8199894 and 8199903.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8199941) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 683323 + ... + 683334.

It is an arithmetic number, because the mean of its divisors is an integer number (2049987).

Almost surely, 2^8199942 is an apocalyptic number.

8199942 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

8199942 is a wasteful number, since it uses less digits than its factorization.

8199942 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1366662.

The product of its digits is 46656, while the sum is 42.

The square root of 8199942 is about 2863.5540853981. The cubic root of 8199942 is about 201.6524920787.

The spelling of 8199942 in words is "eight million, one hundred ninety-nine thousand, nine hundred forty-two".