2044631431 has 4 divisors (see below), whose sum is σ = 2044917000. Its totient is φ = 2044345864.

The previous prime is 2044631423. The next prime is 2044631441. The reversal of 2044631431 is 1341364402.

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

It is a cyclic number.

It is not a de Polignac number, because 2044631431 - 2³ = 2044631423 is a prime.

It is a super-2 number, since 2×2044631431² = 8361035377266215522, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2044631431.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2044631411) 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, 131761 + ... + 146458.

It is an arithmetic number, because the mean of its divisors is an integer number (511229250).

Almost surely, 2^2044631431 is an apocalyptic number.

2044631431 is a deficient number, since it is larger than the sum of its proper divisors (285569).

2044631431 is an equidigital number, since it uses as much as digits as its factorization.

2044631431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 285568.

The product of its (nonzero) digits is 6912, while the sum is 28.

The square root of 2044631431 is about 45217.6008983228. The cubic root of 2044631431 is about 1269.2242003764.

Adding to 2044631431 its reverse (1341364402), we get a palindrome (3385995833).

The spelling of 2044631431 in words is "two billion, forty-four million, six hundred thirty-one thousand, four hundred thirty-one".