431143004 has 24 divisors (see below), whose sum is σ = 788393760. Its totient is φ = 205913664.

The previous prime is 431142991. The next prime is 431143007. The reversal of 431143004 is 400341134.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (431143007) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 73442 + ... + 79094.

It is an arithmetic number, because the mean of its divisors is an integer number (32849740).

Almost surely, 2^431143004 is an apocalyptic number.

It is an amenable number.

431143004 is a deficient number, since it is larger than the sum of its proper divisors (357250756).

431143004 is a wasteful number, since it uses less digits than its factorization.

431143004 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6509 (or 6507 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 20.

The square root of 431143004 is about 20763.9833365373. The cubic root of 431143004 is about 755.4524160090.

Adding to 431143004 its reverse (400341134), we get a palindrome (831484138).

The spelling of 431143004 in words is "four hundred thirty-one million, one hundred forty-three thousand, four".