8140836 has 24 divisors (see below), whose sum is σ = 20722464. Its totient is φ = 2466880.

The previous prime is 8140831. The next prime is 8140843. The reversal of 8140836 is 6380418.

It is a happy number.

It is a hoax number, since the sum of its digits (30) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (8140831) 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, 30705 + ... + 30968.

It is an arithmetic number, because the mean of its divisors is an integer number (863436).

Almost surely, 2^8140836 is an apocalyptic number.

It is an amenable number.

8140836 is an abundant number, since it is smaller than the sum of its proper divisors (12581628).

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

8140836 is a wasteful number, since it uses less digits than its factorization.

8140836 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61691 (or 61689 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 30.

The square root of 8140836 is about 2853.2150287001. The cubic root of 8140836 is about 201.1668128344.

The spelling of 8140836 in words is "eight million, one hundred forty thousand, eight hundred thirty-six".