2141440401 has 4 divisors (see below), whose sum is σ = 2855253872. Its totient is φ = 1427626932.

The previous prime is 2141440397. The next prime is 2141440403. The reversal of 2141440401 is 1040441412.

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 not a de Polignac number, because 2141440401 - 2² = 2141440397 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2141440403) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 356906731 + ... + 356906736.

It is an arithmetic number, because the mean of its divisors is an integer number (713813468).

Almost surely, 2^2141440401 is an apocalyptic number.

It is an amenable number.

2141440401 is a deficient number, since it is larger than the sum of its proper divisors (713813471).

2141440401 is an equidigital number, since it uses as much as digits as its factorization.

2141440401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 713813470.

The product of its (nonzero) digits is 512, while the sum is 21.

The square root of 2141440401 is about 46275.6998974624. The cubic root of 2141440401 is about 1288.9478031403.

Adding to 2141440401 its reverse (1040441412), we get a palindrome (3181881813).

The spelling of 2141440401 in words is "two billion, one hundred forty-one million, four hundred forty thousand, four hundred one".