8136040 has 72 divisors (see below), whose sum is σ = 20624310. Its totient is φ = 2886400.

The previous prime is 8135983. The next prime is 8136053. The reversal of 8136040 is 406318.

It can be written as a sum of positive squares in 3 ways, for example, as 2172676 + 5963364 = 1474^2 + 2442^2 .

It is a Harshad number since it is a multiple of its sum of digits (22).

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 17 ways as a sum of consecutive naturals, for example, 198420 + ... + 198460.

Almost surely, 2^8136040 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 8136040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10312155).

8136040 is an abundant number, since it is smaller than the sum of its proper divisors (12488270).

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

8136040 is a wasteful number, since it uses less digits than its factorization.

8136040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 115 (or 59 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 22.

The square root of 8136040 is about 2852.3744494719. The cubic root of 8136040 is about 201.1273006942.

The spelling of 8136040 in words is "eight million, one hundred thirty-six thousand, forty".