42428324439 has 12 divisors (see below), whose sum is σ = 61300083936. Its totient is φ = 28278752832.

The previous prime is 42428324387. The next prime is 42428324443. The reversal of 42428324439 is 93442382424.

It is a happy number.

It is not a de Polignac number, because 42428324439 - 2¹² = 42428320343 is a prime.

It is a hoax number, since the sum of its digits (45) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 42428324394 and 42428324403.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42428324639) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 526719 + ... + 601904.

It is an arithmetic number, because the mean of its divisors is an integer number (5108340328).

Almost surely, 2^42428324439 is an apocalyptic number.

42428324439 is a deficient number, since it is larger than the sum of its proper divisors (18871759497).

42428324439 is a wasteful number, since it uses less digits than its factorization.

42428324439 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1132806 (or 1132803 counting only the distinct ones).

The product of its digits is 1327104, while the sum is 45.

The spelling of 42428324439 in words is "forty-two billion, four hundred twenty-eight million, three hundred twenty-four thousand, four hundred thirty-nine".