2044431401 has 4 divisors (see below), whose sum is σ = 2044779204. Its totient is φ = 2044083600.

The previous prime is 2044431397. The next prime is 2044431419. The reversal of 2044431401 is 1041344402.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 154355776 + 1890075625 = 12424^2 + 43475^2 .

It is a cyclic number.

It is not a de Polignac number, because 2044431401 - 2² = 2044431397 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2044431601) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 164930 + ... + 176891.

It is an arithmetic number, because the mean of its divisors is an integer number (511194801).

Almost surely, 2^2044431401 is an apocalyptic number.

It is an amenable number.

2044431401 is a deficient number, since it is larger than the sum of its proper divisors (347803).

2044431401 is an equidigital number, since it uses as much as digits as its factorization.

2044431401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 347802.

The product of its (nonzero) digits is 1536, while the sum is 23.

The square root of 2044431401 is about 45215.3889842828. The cubic root of 2044431401 is about 1269.1828088583.

Adding to 2044431401 its reverse (1041344402), we get a palindrome (3085775803).

The spelling of 2044431401 in words is "two billion, forty-four million, four hundred thirty-one thousand, four hundred one".