It is a semiprime because it is the product of two primes.
It is a cyclic number.
It is a de Polignac number, because none of the positive numbers 2k-40307 is a prime.
It is a Duffinian number.
It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 40307.
240307 is an apocalyptic number.
40307 is a wasteful number, since it uses less digits than its factorization.
40307 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 2388.
The square root of 40307 is about 200.7660329837. The cubic root of 40307 is about 34.2867898141.
The spelling of 40307 in words is "forty thousand, three hundred seven", and thus it is an iban number.