40014065 has 16 divisors (see below), whose sum is σ = 59098368. Its totient is φ = 25327296.

The previous prime is 40014059. The next prime is 40014067. The reversal of 40014065 is 56041004.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 40014065 - 2¹⁰ = 40013041 is a prime.

It is a super-2 number, since 2×40014065² = 3202250795648450, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (40014067) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 43517 + ... + 44426.

It is an arithmetic number, because the mean of its divisors is an integer number (3693648).

Almost surely, 2^40014065 is an apocalyptic number.

It is an amenable number.

40014065 is a deficient number, since it is larger than the sum of its proper divisors (19084303).

40014065 is a wasteful number, since it uses less digits than its factorization.

40014065 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 87968.

The product of its (nonzero) digits is 480, while the sum is 20.

The square root of 40014065 is about 6325.6671584901. The cubic root of 40014065 is about 342.0352693241.

Adding to 40014065 its reverse (56041004), we get a palindrome (96055069).

The spelling of 40014065 in words is "forty million, fourteen thousand, sixty-five".