2140431444444 has 24 divisors (see below), whose sum is σ = 4994372130048. Its totient is φ = 713472563440.

The previous prime is 2140431444421. The next prime is 2140431444497. The reversal of 2140431444444 is 4444441340412.

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, 1748299 + ... + 2708765.

It is an arithmetic number, because the mean of its divisors is an integer number (208098838752).

Almost surely, 2^{2140431444444} is an apocalyptic number.

It is an amenable number.

2140431444444 is an abundant number, since it is smaller than the sum of its proper divisors (2853940685604).

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

2140431444444 is a wasteful number, since it uses less digits than its factorization.

2140431444444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1146185 (or 1146183 counting only the distinct ones).

The product of its (nonzero) digits is 393216, while the sum is 39.

Adding to 2140431444444 its reverse (4444441340412), we get a palindrome (6584872784856).

The spelling of 2140431444444 in words is "two trillion, one hundred forty billion, four hundred thirty-one million, four hundred forty-four thousand, four hundred forty-four".