140440912 has 40 divisors (see below), whose sum is σ = 283712000. Its totient is φ = 67271040.

The previous prime is 140440903. The next prime is 140440931. The reversal of 140440912 is 219044041.

140440912 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 polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 49714 + ... + 52462.

It is an arithmetic number, because the mean of its divisors is an integer number (7092800).

Almost surely, 2^140440912 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 140440912, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (141856000).

140440912 is an abundant number, since it is smaller than the sum of its proper divisors (143271088).

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

140440912 is a wasteful number, since it uses less digits than its factorization.

140440912 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2891 (or 2885 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 25.

The square root of 140440912 is about 11850.7768521730. The cubic root of 140440912 is about 519.7939420258.

Adding to 140440912 its reverse (219044041), we get a palindrome (359484953).

The spelling of 140440912 in words is "one hundred forty million, four hundred forty thousand, nine hundred twelve".