42210207 has 32 divisors (see below), whose sum is σ = 68644800. Its totient is φ = 25474176.

The previous prime is 42210199. The next prime is 42210209. The reversal of 42210207 is 70201224.

It is not a de Polignac number, because 42210207 - 2³ = 42210199 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 42210207.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42210209) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 17469 + ... + 19737.

It is an arithmetic number, because the mean of its divisors is an integer number (2145150).

Almost surely, 2^42210207 is an apocalyptic number.

42210207 is a deficient number, since it is larger than the sum of its proper divisors (26434593).

42210207 is a wasteful number, since it uses less digits than its factorization.

42210207 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2344 (or 2338 counting only the distinct ones).

The product of its (nonzero) digits is 224, while the sum is 18.

The square root of 42210207 is about 6496.9382789126. The cubic root of 42210207 is about 348.1816085380.

The spelling of 42210207 in words is "forty-two million, two hundred ten thousand, two hundred seven".