40002506250 has 96 divisors (see below), whose sum is σ = 114285935232. Its totient is φ = 9143400000.

The previous prime is 40002506239. The next prime is 40002506261. The reversal of 40002506250 is 5260520004.

It is an interprime number because it is at equal distance from previous prime (40002506239) and next prime (40002506261).

It is a self number, because there is not a number n which added to its sum of digits gives 40002506250.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 21141 + ... + 283640.

It is an arithmetic number, because the mean of its divisors is an integer number (1190478492).

Almost surely, 2^40002506250 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 40002506250, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (57142967616).

40002506250 is an abundant number, since it is smaller than the sum of its proper divisors (74283428982).

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

40002506250 is an equidigital number, since it uses as much as digits as its factorization.

40002506250 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 304818 (or 304798 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 24.

The spelling of 40002506250 in words is "forty billion, two million, five hundred six thousand, two hundred fifty".