42931382 has 8 divisors (see below), whose sum is σ = 69350736. Its totient is φ = 19814472.

The previous prime is 42931349. The next prime is 42931391. The reversal of 42931382 is 28313924.

It is a happy number.

42931382 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 825578 + ... + 825629.

It is an arithmetic number, because the mean of its divisors is an integer number (8668842).

Almost surely, 2^42931382 is an apocalyptic number.

42931382 is a deficient number, since it is larger than the sum of its proper divisors (26419354).

42931382 is a wasteful number, since it uses less digits than its factorization.

42931382 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1651222.

The product of its digits is 10368, while the sum is 32.

The square root of 42931382 is about 6552.2043618923. The cubic root of 42931382 is about 350.1533532063.

The spelling of 42931382 in words is "forty-two million, nine hundred thirty-one thousand, three hundred eighty-two".