8206140 has 24 divisors (see below), whose sum is σ = 22977360. Its totient is φ = 2188288.

The previous prime is 8206139. The next prime is 8206141. The reversal of 8206140 is 416028.

It is an interprime number because it is at equal distance from previous prime (8206139) and next prime (8206141).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8206141) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 68325 + ... + 68444.

It is an arithmetic number, because the mean of its divisors is an integer number (957390).

Almost surely, 2^8206140 is an apocalyptic number.

It is an amenable number.

8206140 is an abundant number, since it is smaller than the sum of its proper divisors (14771220).

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

8206140 is a wasteful number, since it uses less digits than its factorization.

8206140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 136781 (or 136779 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 21.

The square root of 8206140 is about 2864.6361025443. The cubic root of 8206140 is about 201.7032862338.

The spelling of 8206140 in words is "eight million, two hundred six thousand, one hundred forty".