42532866 has 24 divisors (see below), whose sum is σ = 93419820. Its totient is φ = 13982976.

The previous prime is 42532859. The next prime is 42532909. The reversal of 42532866 is 66823524.

42532866 is a `hidden beast` number, since 42 + 532 + 86 + 6 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 39879225 + 2653641 = 6315^2 + 1629^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 42532866.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 14871 + ... + 17498.

Almost surely, 2^42532866 is an apocalyptic number.

42532866 is an abundant number, since it is smaller than the sum of its proper divisors (50886954).

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

42532866 is a wasteful number, since it uses less digits than its factorization.

42532866 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32450 (or 32447 counting only the distinct ones).

The product of its digits is 69120, while the sum is 36.

The square root of 42532866 is about 6521.7226251965. The cubic root of 42532866 is about 349.0665357554.

The spelling of 42532866 in words is "forty-two million, five hundred thirty-two thousand, eight hundred sixty-six".