8180040 has 64 divisors (see below), whose sum is σ = 26775360. Its totient is φ = 1982720.

The previous prime is 8180027. The next prime is 8180041. The reversal of 8180040 is 400818.

It is a junction number, because it is equal to n+sod(n) for n = 8179989 and 8180016.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8180041) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 1779 + ... + 4418.

It is an arithmetic number, because the mean of its divisors is an integer number (418365).

Almost surely, 2^8180040 is an apocalyptic number.

It is an amenable number.

8180040 is an abundant number, since it is smaller than the sum of its proper divisors (18595320).

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

8180040 is a wasteful number, since it uses less digits than its factorization.

8180040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6222 (or 6218 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 21.

The square root of 8180040 is about 2860.0769220425. The cubic root of 8180040 is about 201.4892169745.

Adding to 8180040 its reverse (400818), we get a palindrome (8580858).

The spelling of 8180040 in words is "eight million, one hundred eighty thousand, forty".