140281444280 has 64 divisors (see below), whose sum is σ = 326040698880. Its totient is φ = 54264873600.

The previous prime is 140281444229. The next prime is 140281444297. The reversal of 140281444280 is 82444182041.

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, 1785587 + ... + 1862493.

It is an arithmetic number, because the mean of its divisors is an integer number (5094385920).

Almost surely, 2^140281444280 is an apocalyptic number.

140281444280 is a gapful number since it is divisible by the number (10) 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 140281444280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (163020349440).

140281444280 is an abundant number, since it is smaller than the sum of its proper divisors (185759254600).

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

140281444280 is a wasteful number, since it uses less digits than its factorization.

140281444280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 78420 (or 78416 counting only the distinct ones).

The product of its (nonzero) digits is 65536, while the sum is 38.

The spelling of 140281444280 in words is "one hundred forty billion, two hundred eighty-one million, four hundred forty-four thousand, two hundred eighty".