2140440441 has 4 divisors (see below), whose sum is σ = 2853920592. Its totient is φ = 1426960292.

The previous prime is 2140440433. The next prime is 2140440443. The reversal of 2140440441 is 1440440412.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 2140440441 - 2³ = 2140440433 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (2140440443) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 356740071 + ... + 356740076.

It is an arithmetic number, because the mean of its divisors is an integer number (713480148).

Almost surely, 2^2140440441 is an apocalyptic number.

It is an amenable number.

2140440441 is a deficient number, since it is larger than the sum of its proper divisors (713480151).

2140440441 is an equidigital number, since it uses as much as digits as its factorization.

2140440441 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 713480150.

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

The square root of 2140440441 is about 46264.8942611998. The cubic root of 2140440441 is about 1288.7471442884.

Adding to 2140440441 its reverse (1440440412), we get a palindrome (3580880853).

The spelling of 2140440441 in words is "two billion, one hundred forty million, four hundred forty thousand, four hundred forty-one".