8402041240 has 128 divisors (see below), whose sum is σ = 21100176000. Its totient is φ = 2996051968.

The previous prime is 8402041237. The next prime is 8402041253. The reversal of 8402041240 is 421402048.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1041141 + ... + 1049179.

It is an arithmetic number, because the mean of its divisors is an integer number (164845125).

Almost surely, 2^8402041240 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 8402041240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10550088000).

8402041240 is an abundant number, since it is smaller than the sum of its proper divisors (12698134760).

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

8402041240 is a wasteful number, since it uses less digits than its factorization.

8402041240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8149 (or 8145 counting only the distinct ones).

The product of its (nonzero) digits is 2048, while the sum is 25.

The square root of 8402041240 is about 91662.6490998378. The cubic root of 8402041240 is about 2032.9573597303.

Adding to 8402041240 its reverse (421402048), we get a palindrome (8823443288).

The spelling of 8402041240 in words is "eight billion, four hundred two million, forty-one thousand, two hundred forty".