40705417 has 4 divisors (see below), whose sum is σ = 40752400. Its totient is φ = 40658436.

The previous prime is 40705409. The next prime is 40705421. The reversal of 40705417 is 71450704.

40705417 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 a cyclic number.

It is not a de Polignac number, because 40705417 - 2³ = 40705409 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40705517) 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, 22167 + ... + 23932.

It is an arithmetic number, because the mean of its divisors is an integer number (10188100).

Almost surely, 2^40705417 is an apocalyptic number.

It is an amenable number.

40705417 is a deficient number, since it is larger than the sum of its proper divisors (46983).

40705417 is an equidigital number, since it uses as much as digits as its factorization.

40705417 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46982.

The product of its (nonzero) digits is 3920, while the sum is 28.

The square root of 40705417 is about 6380.0797016965. The cubic root of 40705417 is about 343.9938958039.

The spelling of 40705417 in words is "forty million, seven hundred five thousand, four hundred seventeen".