40579117 has 4 divisors (see below), whose sum is σ = 42714880. Its totient is φ = 38443356.

The previous prime is 40579111. The next prime is 40579139. The reversal of 40579117 is 71197504.

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 40579117 - 2³ = 40579109 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40579111) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1067853 + ... + 1067890.

It is an arithmetic number, because the mean of its divisors is an integer number (10678720).

Almost surely, 2^40579117 is an apocalyptic number.

It is an amenable number.

40579117 is a deficient number, since it is larger than the sum of its proper divisors (2135763).

40579117 is a wasteful number, since it uses less digits than its factorization.

40579117 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2135762.

The product of its (nonzero) digits is 8820, while the sum is 34.

The square root of 40579117 is about 6370.1740164614. The cubic root of 40579117 is about 343.6377479430.

The spelling of 40579117 in words is "forty million, five hundred seventy-nine thousand, one hundred seventeen".