42823442 has 24 divisors (see below), whose sum is σ = 69863376. Its totient is φ = 19672128.

The previous prime is 42823421. The next prime is 42823453. The reversal of 42823442 is 24432824.

It is a happy number.

42823442 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 11 ways as a sum of consecutive naturals, for example, 23993 + ... + 25715.

It is an arithmetic number, because the mean of its divisors is an integer number (2910974).

Almost surely, 2^42823442 is an apocalyptic number.

42823442 is a deficient number, since it is larger than the sum of its proper divisors (27039934).

42823442 is a wasteful number, since it uses less digits than its factorization.

42823442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1802 (or 1785 counting only the distinct ones).

The product of its digits is 12288, while the sum is 29.

The square root of 42823442 is about 6543.9622553924. The cubic root of 42823442 is about 349.8596498495.

The spelling of 42823442 in words is "forty-two million, eight hundred twenty-three thousand, four hundred forty-two".