42831004 has 12 divisors (see below), whose sum is σ = 75545344. Its totient is φ = 21246624.

The previous prime is 42831001. The next prime is 42831017. The reversal of 42831004 is 40013824.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42831001) 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, 41649 + ... + 42664.

Almost surely, 2^42831004 is an apocalyptic number.

It is an amenable number.

42831004 is a deficient number, since it is larger than the sum of its proper divisors (32714340).

42831004 is a wasteful number, since it uses less digits than its factorization.

42831004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 84444 (or 84442 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 22.

The square root of 42831004 is about 6544.5400143937. The cubic root of 42831004 is about 349.8802420208.

Adding to 42831004 its reverse (40013824), we get a palindrome (82844828).

The spelling of 42831004 in words is "forty-two million, eight hundred thirty-one thousand, four".