8040133240 has 64 divisors (see below), whose sum is σ = 18188841600. Its totient is φ = 3198594048.

The previous prime is 8040133237. The next prime is 8040133259. The reversal of 8040133240 is 423310408.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9937956 + ... + 9938764.

It is an arithmetic number, because the mean of its divisors is an integer number (284200650).

Almost surely, 2^8040133240 is an apocalyptic number.

It is an amenable number.

8040133240 is an abundant number, since it is smaller than the sum of its proper divisors (10148708360).

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

8040133240 is a wasteful number, since it uses less digits than its factorization.

8040133240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1864 (or 1860 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 25.

The square root of 8040133240 is about 89666.7900618730. The cubic root of 8040133240 is about 2003.3388595732.

Adding to 8040133240 its reverse (423310408), we get a palindrome (8463443648).

The spelling of 8040133240 in words is "eight billion, forty million, one hundred thirty-three thousand, two hundred forty".