140081800 has 48 divisors (see below), whose sum is σ = 326764800. Its totient is φ = 55848000.

The previous prime is 140081779. The next prime is 140081807. The reversal of 140081800 is 8180041.

It is not an unprimeable number, because it can be changed into a prime (140081807) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 70825 + ... + 72775.

It is an arithmetic number, because the mean of its divisors is an integer number (6807600).

Almost surely, 2^140081800 is an apocalyptic number.

140081800 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 140081800, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (163382400).

140081800 is an abundant number, since it is smaller than the sum of its proper divisors (186683000).

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

140081800 is a wasteful number, since it uses less digits than its factorization.

140081800 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2326 (or 2317 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 22.

The square root of 140081800 is about 11835.6157423262. The cubic root of 140081800 is about 519.3505204994.

The spelling of 140081800 in words is "one hundred forty million, eighty-one thousand, eight hundred".