40216307 has 4 divisors (see below), whose sum is σ = 40366080. Its totient is φ = 40066536.

The previous prime is 40216289. The next prime is 40216321. The reversal of 40216307 is 70361204.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 40216307 - 2¹⁰ = 40215283 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40216327) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 74483 + ... + 75020.

It is an arithmetic number, because the mean of its divisors is an integer number (10091520).

Almost surely, 2^40216307 is an apocalyptic number.

40216307 is a deficient number, since it is larger than the sum of its proper divisors (149773).

40216307 is a wasteful number, since it uses less digits than its factorization.

40216307 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 149772.

The product of its (nonzero) digits is 1008, while the sum is 23.

The square root of 40216307 is about 6341.6328339001. The cubic root of 40216307 is about 342.6105477238.

The spelling of 40216307 in words is "forty million, two hundred sixteen thousand, three hundred seven".