8159040 has 84 divisors (see below), whose sum is σ = 28073604. Its totient is φ = 2174976.

The previous prime is 8159033. The next prime is 8159069. The reversal of 8159040 is 409518.

It can be written as a sum of positive squares in 2 ways, for example, as 3069504 + 5089536 = 1752^2 + 2256^2 .

It is a junction number, because it is equal to n+sod(n) for n = 8158995 and 8159013.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1464 + ... + 4296.

Almost surely, 2^8159040 is an apocalyptic number.

8159040 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 8159040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14036802).

8159040 is an abundant number, since it is smaller than the sum of its proper divisors (19914564).

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

8159040 is a wasteful number, since it uses less digits than its factorization.

8159040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2856 (or 2843 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 27.

The square root of 8159040 is about 2856.4033328646. The cubic root of 8159040 is about 201.3166465223.

The spelling of 8159040 in words is "eight million, one hundred fifty-nine thousand, forty".