42831444 has 12 divisors (see below), whose sum is σ = 99940064. Its totient is φ = 14277144.

The previous prime is 42831443. The next prime is 42831461. The reversal of 42831444 is 44413824.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42831443) 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, 1784632 + ... + 1784655.

Almost surely, 2^42831444 is an apocalyptic number.

It is an amenable number.

42831444 is an abundant number, since it is smaller than the sum of its proper divisors (57108620).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

42831444 is a wasteful number, since it uses less digits than its factorization.

42831444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3569294 (or 3569292 counting only the distinct ones).

The product of its digits is 12288, while the sum is 30.

The square root of 42831444 is about 6544.5736301153. The cubic root of 42831444 is about 349.8814401154.

The spelling of 42831444 in words is "forty-two million, eight hundred thirty-one thousand, four hundred forty-four".