42170211 has 6 divisors (see below), whose sum is σ = 60912540. Its totient is φ = 28113468.

The previous prime is 42170207. The next prime is 42170221. The reversal of 42170211 is 11207124.

It is not a de Polignac number, because 42170211 - 2² = 42170207 is a prime.

It is not an unprimeable number, because it can be changed into a prime (42170221) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2342781 + ... + 2342798.

It is an arithmetic number, because the mean of its divisors is an integer number (10152090).

Almost surely, 2^42170211 is an apocalyptic number.

42170211 is a deficient number, since it is larger than the sum of its proper divisors (18742329).

42170211 is a wasteful number, since it uses less digits than its factorization.

42170211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4685585 (or 4685582 counting only the distinct ones).

The product of its (nonzero) digits is 112, while the sum is 18.

The square root of 42170211 is about 6493.8594841589. The cubic root of 42170211 is about 348.0716013985.

Adding to 42170211 its reverse (11207124), we get a palindrome (53377335).

The spelling of 42170211 in words is "forty-two million, one hundred seventy thousand, two hundred eleven".