2140401444 has 24 divisors (see below), whose sum is σ = 5027348928. Its totient is φ = 708741600.

The previous prime is 2140401421. The next prime is 2140401451. The reversal of 2140401444 is 4441040412.

It is a happy 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, 588807 + ... + 592430.

It is an arithmetic number, because the mean of its divisors is an integer number (209472872).

Almost surely, 2^2140401444 is an apocalyptic number.

It is an amenable number.

2140401444 is an abundant number, since it is smaller than the sum of its proper divisors (2886947484).

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

2140401444 is a wasteful number, since it uses less digits than its factorization.

2140401444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1181395 (or 1181393 counting only the distinct ones).

The product of its (nonzero) digits is 2048, while the sum is 24.

The square root of 2140401444 is about 46264.4728058150. The cubic root of 2140401444 is about 1288.7393176161.

Adding to 2140401444 its reverse (4441040412), we get a palindrome (6581441856).

The spelling of 2140401444 in words is "two billion, one hundred forty million, four hundred one thousand, four hundred forty-four".