42424252 has 12 divisors (see below), whose sum is σ = 79953496. Its totient is φ = 19580400.

The previous prime is 42424243. The next prime is 42424279. The reversal of 42424252 is 25242424.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 407874 + ... + 407977.

Almost surely, 2^42424252 is an apocalyptic number.

It is an amenable number.

42424252 is a deficient number, since it is larger than the sum of its proper divisors (37529244).

42424252 is a wasteful number, since it uses less digits than its factorization.

42424252 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 815868 (or 815866 counting only the distinct ones).

The product of its digits is 5120, while the sum is 25.

The square root of 42424252 is about 6513.3902078718. The cubic root of 42424252 is about 348.7691513658.

Adding to 42424252 its reverse (25242424), we get a palindrome (67666676).

The spelling of 42424252 in words is "forty-two million, four hundred twenty-four thousand, two hundred fifty-two".