42432687 has 16 divisors (see below), whose sum is σ = 68578560. Its totient is φ = 25716600.

The previous prime is 42432647. The next prime is 42432703. The reversal of 42432687 is 78623424.

It is not a de Polignac number, because 42432687 - 2¹⁰ = 42431663 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42432647) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 71139 + ... + 71732.

It is an arithmetic number, because the mean of its divisors is an integer number (4286160).

Almost surely, 2^42432687 is an apocalyptic number.

42432687 is a deficient number, since it is larger than the sum of its proper divisors (26145873).

42432687 is a wasteful number, since it uses less digits than its factorization.

42432687 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 142891 (or 142885 counting only the distinct ones).

The product of its digits is 64512, while the sum is 36.

The square root of 42432687 is about 6514.0376879475. The cubic root of 42432687 is about 348.7922645044.

The spelling of 42432687 in words is "forty-two million, four hundred thirty-two thousand, six hundred eighty-seven".