42271837 has 4 divisors (see below), whose sum is σ = 42307900. Its totient is φ = 42235776.

The previous prime is 42271829. The next prime is 42271849. The reversal of 42271837 is 73817224.

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

It can be written as a sum of positive squares in 2 ways, for example, as 1490841 + 40780996 = 1221^2 + 6386^2 .

It is a cyclic number.

It is not a de Polignac number, because 42271837 - 2³ = 42271829 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42271897) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16212 + ... + 18637.

It is an arithmetic number, because the mean of its divisors is an integer number (10576975).

Almost surely, 2^42271837 is an apocalyptic number.

It is an amenable number.

42271837 is a deficient number, since it is larger than the sum of its proper divisors (36063).

42271837 is a wasteful number, since it uses less digits than its factorization.

42271837 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36062.

The product of its digits is 18816, while the sum is 34.

The square root of 42271837 is about 6501.6795522388. The cubic root of 42271837 is about 348.3509830321.

The spelling of 42271837 in words is "forty-two million, two hundred seventy-one thousand, eight hundred thirty-seven".