40005417 has 4 divisors (see below), whose sum is σ = 53340560. Its totient is φ = 26670276.

The previous prime is 40005409. The next prime is 40005439. The reversal of 40005417 is 71450004.

40005417 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 40005417 - 2³ = 40005409 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 40005393 and 40005402.

It is not an unprimeable number, because it can be changed into a prime (40005467) 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 3 ways as a sum of consecutive naturals, for example, 6667567 + ... + 6667572.

It is an arithmetic number, because the mean of its divisors is an integer number (13335140).

Almost surely, 2^40005417 is an apocalyptic number.

It is an amenable number.

40005417 is a deficient number, since it is larger than the sum of its proper divisors (13335143).

40005417 is a wasteful number, since it uses less digits than its factorization.

40005417 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13335142.

The product of its (nonzero) digits is 560, while the sum is 21.

The square root of 40005417 is about 6324.9835572909. The cubic root of 40005417 is about 342.0106268713.

The spelling of 40005417 in words is "forty million, five thousand, four hundred seventeen".