42428824 has 16 divisors (see below), whose sum is σ = 83741400. Its totient is φ = 20097792.

The previous prime is 42428807. The next prime is 42428833. The reversal of 42428824 is 42882424.

It is a happy number.

It is a nude number because it is divisible by every one of its digits.

It is a self number, because there is not a number n which added to its sum of digits gives 42428824.

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, 139417 + ... + 139720.

Almost surely, 2^42428824 is an apocalyptic number.

It is an amenable number.

42428824 is a deficient number, since it is larger than the sum of its proper divisors (41312576).

42428824 is a wasteful number, since it uses less digits than its factorization.

42428824 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 279162 (or 279158 counting only the distinct ones).

The product of its digits is 32768, while the sum is 34.

The square root of 42428824 is about 6513.7411677161. The cubic root of 42428824 is about 348.7816796974.

The spelling of 42428824 in words is "forty-two million, four hundred twenty-eight thousand, eight hundred twenty-four".