42831668 has 24 divisors (see below), whose sum is σ = 82131840. Its totient is φ = 19382720.

The previous prime is 42831661. The next prime is 42831671. The reversal of 42831668 is 86613824.

It is a happy number.

42831668 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42831661) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8480 + ... + 12552.

It is an arithmetic number, because the mean of its divisors is an integer number (3422160).

Almost surely, 2^42831668 is an apocalyptic number.

It is an amenable number.

42831668 is a deficient number, since it is larger than the sum of its proper divisors (39300172).

42831668 is a wasteful number, since it uses less digits than its factorization.

42831668 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4327 (or 4325 counting only the distinct ones).

The product of its digits is 55296, while the sum is 38.

The square root of 42831668 is about 6544.5907435072. The cubic root of 42831668 is about 349.8820500513.

The spelling of 42831668 in words is "forty-two million, eight hundred thirty-one thousand, six hundred sixty-eight".