40016365 has 4 divisors (see below), whose sum is σ = 48019644. Its totient is φ = 32013088.

The previous prime is 40016357. The next prime is 40016393. The reversal of 40016365 is 56361004.

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

It can be written as a sum of positive squares in 2 ways, for example, as 16793604 + 23222761 = 4098^2 + 4819^2 .

It is a cyclic number.

It is not a de Polignac number, because 40016365 - 2³ = 40016357 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4001632 + ... + 4001641.

It is an arithmetic number, because the mean of its divisors is an integer number (12004911).

Almost surely, 2^40016365 is an apocalyptic number.

It is an amenable number.

40016365 is a deficient number, since it is larger than the sum of its proper divisors (8003279).

40016365 is an equidigital number, since it uses as much as digits as its factorization.

40016365 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8003278.

The product of its (nonzero) digits is 2160, while the sum is 25.

The square root of 40016365 is about 6325.8489548834. The cubic root of 40016365 is about 342.0418225703.

Adding to 40016365 its reverse (56361004), we get a palindrome (96377369).

The spelling of 40016365 in words is "forty million, sixteen thousand, three hundred sixty-five".