42271538 has 16 divisors (see below), whose sum is σ = 67225344. Its totient is φ = 19900080.

The previous prime is 42271519. The next prime is 42271543. The reversal of 42271538 is 83517224.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6920 + ... + 11507.

It is an arithmetic number, because the mean of its divisors is an integer number (4201584).

Almost surely, 2^42271538 is an apocalyptic number.

42271538 is a deficient number, since it is larger than the sum of its proper divisors (24953806).

42271538 is a wasteful number, since it uses less digits than its factorization.

42271538 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18497.

The product of its digits is 13440, while the sum is 32.

The square root of 42271538 is about 6501.6565581396. The cubic root of 42271538 is about 348.3501617036.

The spelling of 42271538 in words is "forty-two million, two hundred seventy-one thousand, five hundred thirty-eight".