40424665 has 8 divisors (see below), whose sum is σ = 48589128. Its totient is φ = 32286720.

The previous prime is 40424633. The next prime is 40424669. The reversal of 40424665 is 56642404.

40424665 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 9865881 + 30558784 = 3141^2 + 5528^2 .

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

It is not a de Polignac number, because 40424665 - 2⁵ = 40424633 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40424669) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3102 + ... + 9511.

It is an arithmetic number, because the mean of its divisors is an integer number (6073641).

Almost surely, 2^40424665 is an apocalyptic number.

It is an amenable number.

40424665 is a deficient number, since it is larger than the sum of its proper divisors (8164463).

40424665 is a wasteful number, since it uses less digits than its factorization.

40424665 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13259.

The product of its (nonzero) digits is 23040, while the sum is 31.

The square root of 40424665 is about 6358.0393990601. The cubic root of 40424665 is about 343.2012096220.

The spelling of 40424665 in words is "forty million, four hundred twenty-four thousand, six hundred sixty-five".