40746565 has 4 divisors (see below), whose sum is σ = 48895884. Its totient is φ = 32597248.

The previous prime is 40746533. The next prime is 40746571. The reversal of 40746565 is 56564704.

It is a happy number.

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 13883076 + 26863489 = 3726^2 + 5183^2 .

It is a cyclic number.

It is not a de Polignac number, because 40746565 - 2⁵ = 40746533 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, 4074652 + ... + 4074661.

It is an arithmetic number, because the mean of its divisors is an integer number (12223971).

Almost surely, 2^40746565 is an apocalyptic number.

It is an amenable number.

40746565 is a deficient number, since it is larger than the sum of its proper divisors (8149319).

40746565 is an equidigital number, since it uses as much as digits as its factorization.

40746565 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8149318.

The product of its (nonzero) digits is 100800, while the sum is 37.

The square root of 40746565 is about 6383.3036117672. The cubic root of 40746565 is about 344.1097681294.

The spelling of 40746565 in words is "forty million, seven hundred forty-six thousand, five hundred sixty-five".