8193442 has 4 divisors (see below), whose sum is σ = 12290166. Its totient is φ = 4096720.

The previous prime is 8193413. The next prime is 8193443. The reversal of 8193442 is 2443918.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 2443918 = 2 ⋅1221959.

It can be written as a sum of positive squares in only one way, i.e., 5340721 + 2852721 = 2311^2 + 1689^2 .

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (8193443) by changing a digit.

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 as a sum of consecutive naturals, namely, 2048359 + ... + 2048362.

Almost surely, 2^8193442 is an apocalyptic number.

8193442 is a deficient number, since it is larger than the sum of its proper divisors (4096724).

8193442 is a wasteful number, since it uses less digits than its factorization.

8193442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4096723.

The product of its digits is 6912, while the sum is 31.

The square root of 8193442 is about 2862.4189071483. The cubic root of 8193442 is about 201.5991954543.

It can be divided in two parts, 8 and 193442, that multiplied together give a square (1547536 = 1244²).

The spelling of 8193442 in words is "eight million, one hundred ninety-three thousand, four hundred forty-two".