259900000440 has 192 divisors, whose sum is σ = 829669219200. Its totient is φ = 65119045632.

The previous prime is 259900000433. The next prime is 259900000471. The reversal of 259900000440 is 44000009952.

259900000440 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 pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 21460867 + ... + 21472973.

It is an arithmetic number, because the mean of its divisors is an integer number (4321193850).

Almost surely, 2^259900000440 is an apocalyptic number.

259900000440 is a gapful number since it is divisible by the number (20) 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 259900000440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (414834609600).

259900000440 is an abundant number, since it is smaller than the sum of its proper divisors (569769218760).

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

259900000440 is a wasteful number, since it uses less digits than its factorization.

259900000440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12774 (or 12753 counting only the distinct ones).

The product of its (nonzero) digits is 12960, while the sum is 33.

The spelling of 259900000440 in words is "two hundred fifty-nine billion, nine hundred million, four hundred forty", and thus it is an aban number.