40281558240 has 288 divisors, whose sum is σ = 159396733440. Its totient is φ = 8370109440.

The previous prime is 40281558203. The next prime is 40281558263. The reversal of 40281558240 is 4285518204.

It is a happy number.

40281558240 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

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, 357021 + ... + 456099.

It is an arithmetic number, because the mean of its divisors is an integer number (553460880).

Almost surely, 2^40281558240 is an apocalyptic number.

40281558240 is a gapful number since it is divisible by the number (40) 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 40281558240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (79698366720).

40281558240 is an abundant number, since it is smaller than the sum of its proper divisors (119115175200).

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

40281558240 is a wasteful number, since it uses less digits than its factorization.

40281558240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 99126 (or 99107 counting only the distinct ones).

The product of its (nonzero) digits is 102400, while the sum is 39.

The spelling of 40281558240 in words is "forty billion, two hundred eighty-one million, five hundred fifty-eight thousand, two hundred forty".