42197041 has 4 divisors (see below), whose sum is σ = 42232932. Its totient is φ = 42161152.

The previous prime is 42197039. The next prime is 42197083. The reversal of 42197041 is 14079124.

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 7728400 + 34468641 = 2780^2 + 5871^2 .

It is a cyclic number.

It is not a de Polignac number, because 42197041 - 2¹ = 42197039 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (42197011) 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, 16120 + ... + 18553.

It is an arithmetic number, because the mean of its divisors is an integer number (10558233).

Almost surely, 2^42197041 is an apocalyptic number.

It is an amenable number.

42197041 is a deficient number, since it is larger than the sum of its proper divisors (35891).

42197041 is a wasteful number, since it uses less digits than its factorization.

42197041 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35890.

The product of its (nonzero) digits is 2016, while the sum is 28.

The square root of 42197041 is about 6495.9249533842. The cubic root of 42197041 is about 348.1454037423.

The spelling of 42197041 in words is "forty-two million, one hundred ninety-seven thousand, forty-one".