8193140 has 12 divisors (see below), whose sum is σ = 17205636. Its totient is φ = 3277248.

The previous prime is 8193139. The next prime is 8193173. The reversal of 8193140 is 413918.

It can be written as a sum of positive squares in 2 ways, for example, as 913936 + 7279204 = 956^2 + 2698^2 .

It is a congruent number.

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, 204809 + ... + 204848.

It is an arithmetic number, because the mean of its divisors is an integer number (1433803).

Almost surely, 2^8193140 is an apocalyptic number.

It is an amenable number.

8193140 is an abundant number, since it is smaller than the sum of its proper divisors (9012496).

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

8193140 is a wasteful number, since it uses less digits than its factorization.

8193140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 409666 (or 409664 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 26.

The square root of 8193140 is about 2862.3661540760. The cubic root of 8193140 is about 201.5967185260.

The spelling of 8193140 in words is "eight million, one hundred ninety-three thousand, one hundred forty".