140018944 has 36 divisors (see below), whose sum is σ = 300997396. Its totient is φ = 64622592.

The previous prime is 140018939. The next prime is 140018947. The reversal of 140018944 is 449810041.

140018944 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 10969344 + 129049600 = 3312^2 + 11360^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (140018947) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17709 + ... + 24364.

Almost surely, 2^140018944 is an apocalyptic number.

It is an amenable number.

140018944 is an abundant number, since it is smaller than the sum of its proper divisors (160978452).

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

140018944 is an equidigital number, since it uses as much as digits as its factorization.

140018944 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42102 (or 42088 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 31.

The square root of 140018944 is about 11832.9600692304. The cubic root of 140018944 is about 519.2728297498.

Adding to 140018944 its reverse (449810041), we get a palindrome (589828985).

The spelling of 140018944 in words is "one hundred forty million, eighteen thousand, nine hundred forty-four".