42071224 has 16 divisors (see below), whose sum is σ = 84951720. Its totient is φ = 19417440.

The previous prime is 42071201. The next prime is 42071231. The reversal of 42071224 is 42217024.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 42071195 and 42071204.

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, 202162 + ... + 202369.

Almost surely, 2^42071224 is an apocalyptic number.

It is an amenable number.

42071224 is an abundant number, since it is smaller than the sum of its proper divisors (42880496).

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

42071224 is a wasteful number, since it uses less digits than its factorization.

42071224 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 404550 (or 404546 counting only the distinct ones).

The product of its (nonzero) digits is 896, while the sum is 22.

The square root of 42071224 is about 6486.2334216400. The cubic root of 42071224 is about 347.7990428267.

Adding to 42071224 its reverse (42217024), we get a palindrome (84288248).

The spelling of 42071224 in words is "forty-two million, seventy-one thousand, two hundred twenty-four".