140278432240 has 80 divisors (see below), whose sum is σ = 331998661440. Its totient is φ = 55113062400.

The previous prime is 140278432213. The next prime is 140278432247. The reversal of 140278432240 is 42234872041.

140278432240 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (80).

It is a self number, because there is not a number n which added to its sum of digits gives 140278432240.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (140278432247) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1009882 + ... + 1140358.

It is an arithmetic number, because the mean of its divisors is an integer number (4149983268).

Almost surely, 2^140278432240 is an apocalyptic number.

140278432240 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 140278432240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (165999330720).

140278432240 is an abundant number, since it is smaller than the sum of its proper divisors (191720229200).

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

140278432240 is a wasteful number, since it uses less digits than its factorization.

140278432240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 130730 (or 130724 counting only the distinct ones).

The product of its (nonzero) digits is 86016, while the sum is 37.

The spelling of 140278432240 in words is "one hundred forty billion, two hundred seventy-eight million, four hundred thirty-two thousand, two hundred forty".