8205742 has 8 divisors (see below), whose sum is σ = 12373632. Its totient is φ = 4081200.

The previous prime is 8205737. The next prime is 8205773. The reversal of 8205742 is 2475028.

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

It is a self number, because there is not a number n which added to its sum of digits gives 8205742.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10359 + ... + 11122.

It is an arithmetic number, because the mean of its divisors is an integer number (1546704).

Almost surely, 2^8205742 is an apocalyptic number.

8205742 is a deficient number, since it is larger than the sum of its proper divisors (4167890).

8205742 is a wasteful number, since it uses less digits than its factorization.

8205742 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21674.

The product of its (nonzero) digits is 4480, while the sum is 28.

The square root of 8205742 is about 2864.5666338907. The cubic root of 8205742 is about 201.7000252932.

The spelling of 8205742 in words is "eight million, two hundred five thousand, seven hundred forty-two".