8205740 has 24 divisors (see below), whose sum is σ = 17654112. Its totient is φ = 3201920.

The previous prime is 8205737. The next prime is 8205773. The reversal of 8205740 is 475028.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4184 + ... + 5823.

It is an arithmetic number, because the mean of its divisors is an integer number (735588).

Almost surely, 2^8205740 is an apocalyptic number.

It is an amenable number.

8205740 is an abundant number, since it is smaller than the sum of its proper divisors (9448372).

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

8205740 is a wasteful number, since it uses less digits than its factorization.

8205740 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10057 (or 10055 counting only the distinct ones).

The product of its (nonzero) digits is 2240, while the sum is 26.

The square root of 8205740 is about 2864.5662847978. The cubic root of 8205740 is about 201.7000089063.

The spelling of 8205740 in words is "eight million, two hundred five thousand, seven hundred forty".