172427242 has 16 divisors (see below), whose sum is σ = 293196960. Its totient is φ = 75393072.

The previous prime is 172427207. The next prime is 172427249. The reversal of 172427242 is 242724271.

172427242 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (172427249) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 174028 + ... + 175015.

It is an arithmetic number, because the mean of its divisors is an integer number (18324810).

Almost surely, 2^172427242 is an apocalyptic number.

172427242 is a deficient number, since it is larger than the sum of its proper divisors (120769718).

172427242 is a wasteful number, since it uses less digits than its factorization.

172427242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 349077.

The product of its digits is 12544, while the sum is 31.

The square root of 172427242 is about 13131.1553947092. The cubic root of 172427242 is about 556.5898649029.

The spelling of 172427242 in words is "one hundred seventy-two million, four hundred twenty-seven thousand, two hundred forty-two".