42131224 has 16 divisors (see below), whose sum is σ = 79102800. Its totient is φ = 21037152.

The previous prime is 42131183. The next prime is 42131267. The reversal of 42131224 is 42213124.

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, 3574 + ... + 9850.

It is an arithmetic number, because the mean of its divisors is an integer number (4943925).

Almost surely, 2^42131224 is an apocalyptic number.

It is an amenable number.

42131224 is a deficient number, since it is larger than the sum of its proper divisors (36971576).

42131224 is a wasteful number, since it uses less digits than its factorization.

42131224 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7122 (or 7118 counting only the distinct ones).

The product of its digits is 384, while the sum is 19.

The square root of 42131224 is about 6490.8569542087. The cubic root of 42131224 is about 347.9643024994.

Adding to 42131224 its reverse (42213124), we get a palindrome (84344348).

The spelling of 42131224 in words is "forty-two million, one hundred thirty-one thousand, two hundred twenty-four".