4142172 has 12 divisors (see below), whose sum is σ = 9665096. Its totient is φ = 1380720.

The previous prime is 4142167. The next prime is 4142179. The reversal of 4142172 is 2712414.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4142179) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 172579 + ... + 172602.

Almost surely, 2^4142172 is an apocalyptic number.

It is an amenable number.

4142172 is an abundant number, since it is smaller than the sum of its proper divisors (5522924).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

4142172 is a wasteful number, since it uses less digits than its factorization.

4142172 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 345188 (or 345186 counting only the distinct ones).

The product of its digits is 448, while the sum is 21.

The square root of 4142172 is about 2035.2326648322. The cubic root of 4142172 is about 160.5989529648.

Adding to 4142172 its reverse (2712414), we get a palindrome (6854586).

The spelling of 4142172 in words is "four million, one hundred forty-two thousand, one hundred seventy-two".