42512242 has 8 divisors (see below), whose sum is σ = 64813932. Its totient is φ = 20907600.

The previous prime is 42512219. The next prime is 42512269. The reversal of 42512242 is 24221524.

42512242 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 42367081 + 145161 = 6509^2 + 381^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

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, 174109 + ... + 174352.

Almost surely, 2^42512242 is an apocalyptic number.

42512242 is a deficient number, since it is larger than the sum of its proper divisors (22301690).

42512242 is a wasteful number, since it uses less digits than its factorization.

42512242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 348524.

The product of its digits is 1280, while the sum is 22.

The square root of 42512242 is about 6520.1412561386. The cubic root of 42512242 is about 349.0101063567.

Adding to 42512242 its reverse (24221524), we get a palindrome (66733766).

The spelling of 42512242 in words is "forty-two million, five hundred twelve thousand, two hundred forty-two".