41640979 has 8 divisors (see below), whose sum is σ = 42864320. Its totient is φ = 40435200.

The previous prime is 41640959. The next prime is 41640983. The reversal of 41640979 is 97904614.

It is a happy number.

41640979 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 41640979 - 2¹¹ = 41638931 is a prime.

It is a super-2 number, since 2×41640979² = 3467942264156882, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (41640959) 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, 499 + ... + 9139.

It is an arithmetic number, because the mean of its divisors is an integer number (5358040).

Almost surely, 2^41640979 is an apocalyptic number.

41640979 is a deficient number, since it is larger than the sum of its proper divisors (1223341).

41640979 is an equidigital number, since it uses as much as digits as its factorization.

41640979 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8781.

The product of its (nonzero) digits is 54432, while the sum is 40.

The square root of 41640979 is about 6452.9821788069. The cubic root of 41640979 is about 346.6093791965.

The spelling of 41640979 in words is "forty-one million, six hundred forty thousand, nine hundred seventy-nine".