42252172 has 12 divisors (see below), whose sum is σ = 73989216. Its totient is φ = 21112400.

The previous prime is 42252151. The next prime is 42252179. The reversal of 42252172 is 27125224.

It is not an unprimeable number, because it can be changed into a prime (42252179) 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, 7158 + ... + 11650.

It is an arithmetic number, because the mean of its divisors is an integer number (6165768).

Almost surely, 2^42252172 is an apocalyptic number.

It is an amenable number.

42252172 is a deficient number, since it is larger than the sum of its proper divisors (31737044).

42252172 is a wasteful number, since it uses less digits than its factorization.

42252172 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6848 (or 6846 counting only the distinct ones).

The product of its digits is 2240, while the sum is 25.

The square root of 42252172 is about 6500.1670747758. The cubic root of 42252172 is about 348.2969566392.

Adding to 42252172 its reverse (27125224), we get a palindrome (69377396).

It can be divided in two parts, 42252 and 172, that added together give a palindrome (42424).

The spelling of 42252172 in words is "forty-two million, two hundred fifty-two thousand, one hundred seventy-two".