40740565 has 8 divisors (see below), whose sum is σ = 50025888. Its totient is φ = 31834320.

The previous prime is 40740559. The next prime is 40740569. The reversal of 40740565 is 56504704.

It is a happy number.

40740565 is nontrivially palindromic in base 13.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 40740565 - 2⁵ = 40740533 is a prime.

It is a Duffinian number.

It is a zygodrome in base 3.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40740569) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 94531 + ... + 94960.

It is an arithmetic number, because the mean of its divisors is an integer number (6253236).

Almost surely, 2^40740565 is an apocalyptic number.

It is an amenable number.

40740565 is a deficient number, since it is larger than the sum of its proper divisors (9285323).

40740565 is a wasteful number, since it uses less digits than its factorization.

40740565 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 189539.

The product of its (nonzero) digits is 16800, while the sum is 31.

The square root of 40740565 is about 6382.8336183861. The cubic root of 40740565 is about 344.0928770535.

The spelling of 40740565 in words is "forty million, seven hundred forty thousand, five hundred sixty-five".