42275438 has 4 divisors (see below), whose sum is σ = 63413160. Its totient is φ = 21137718.

The previous prime is 42275411. The next prime is 42275477. The reversal of 42275438 is 83457224.

It is a semiprime because it is the product of two primes.

It is a junction number, because it is equal to n+sod(n) for n = 42275398 and 42275407.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10568858 + ... + 10568861.

It is an arithmetic number, because the mean of its divisors is an integer number (15853290).

Almost surely, 2^42275438 is an apocalyptic number.

42275438 is a deficient number, since it is larger than the sum of its proper divisors (21137722).

42275438 is a wasteful number, since it uses less digits than its factorization.

42275438 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21137721.

The product of its digits is 53760, while the sum is 35.

The square root of 42275438 is about 6501.9564747851. The cubic root of 42275438 is about 348.3608743795.

The spelling of 42275438 in words is "forty-two million, two hundred seventy-five thousand, four hundred thirty-eight".