2004731431 has 4 divisors (see below), whose sum is σ = 2004831000. Its totient is φ = 2004631864.

The previous prime is 2004731381. The next prime is 2004731437. The reversal of 2004731431 is 1341374002.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 2004731431 - 2⁷ = 2004731303 is a prime.

It is a super-2 number, since 2×2004731431² = 8037896220878615522, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2004731396 and 2004731405.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2004731437) 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, 7756 + ... + 63793.

It is an arithmetic number, because the mean of its divisors is an integer number (501207750).

Almost surely, 2^2004731431 is an apocalyptic number.

2004731431 is a deficient number, since it is larger than the sum of its proper divisors (99569).

2004731431 is an equidigital number, since it uses as much as digits as its factorization.

2004731431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 99568.

The product of its (nonzero) digits is 2016, while the sum is 25.

The square root of 2004731431 is about 44774.2273076823. The cubic root of 2004731431 is about 1260.9138056989.

The spelling of 2004731431 in words is "two billion, four million, seven hundred thirty-one thousand, four hundred thirty-one".