140012440 has 32 divisors (see below), whose sum is σ = 323545680. Its totient is φ = 54490752.

The previous prime is 140012437. The next prime is 140012473. The reversal of 140012440 is 44210041.

140012440 is digitally balanced in base 3, 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, 45822 + ... + 48781.

Almost surely, 2^140012440 is an apocalyptic number.

140012440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

140012440 is an abundant number, since it is smaller than the sum of its proper divisors (183533240).

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

140012440 is a wasteful number, since it uses less digits than its factorization.

140012440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 94651 (or 94647 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 16.

The square root of 140012440 is about 11832.6852404685. The cubic root of 140012440 is about 519.2647894026.

Adding to 140012440 its reverse (44210041), we get a palindrome (184222481).

The spelling of 140012440 in words is "one hundred forty million, twelve thousand, four hundred forty".