42810663 has 24 divisors (see below), whose sum is σ = 66808560. Its totient is φ = 24312960.

The previous prime is 42810643. The next prime is 42810673. The reversal of 42810663 is 36601824.

It is not a de Polignac number, because 42810663 - 2²⁰ = 41762087 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 42810663.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42810643) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 25803 + ... + 27411.

It is an arithmetic number, because the mean of its divisors is an integer number (2783690).

Almost surely, 2^42810663 is an apocalyptic number.

42810663 is a deficient number, since it is larger than the sum of its proper divisors (23997897).

42810663 is a wasteful number, since it uses less digits than its factorization.

42810663 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1807 (or 1800 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 30.

The square root of 42810663 is about 6542.9857863211. The cubic root of 42810663 is about 349.8248456936.

The spelling of 42810663 in words is "forty-two million, eight hundred ten thousand, six hundred sixty-three".