140783860 has 72 divisors (see below), whose sum is σ = 347694984. Its totient is φ = 47738880.

The previous prime is 140783857. The next prime is 140783869. The reversal of 140783860 is 68387041.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 9314704 + 131469156 = 3052^2 + 11466^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (140783869) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 94320 + ... + 95800.

It is an arithmetic number, because the mean of its divisors is an integer number (4829097).

Almost surely, 2^140783860 is an apocalyptic number.

140783860 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 140783860, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (173847492).

140783860 is an abundant number, since it is smaller than the sum of its proper divisors (206911124).

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

140783860 is a wasteful number, since it uses less digits than its factorization.

140783860 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1601 (or 1592 counting only the distinct ones).

The product of its (nonzero) digits is 32256, while the sum is 37.

The square root of 140783860 is about 11865.2374607506. The cubic root of 140783860 is about 520.2166996230.

The spelling of 140783860 in words is "one hundred forty million, seven hundred eighty-three thousand, eight hundred sixty".