40814579 has 4 divisors (see below), whose sum is σ = 43954176. Its totient is φ = 37674984.

The previous prime is 40814573. The next prime is 40814621. The reversal of 40814579 is 97541804.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 40814579 - 2²⁰ = 39766003 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40814573) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1569779 + ... + 1569804.

It is an arithmetic number, because the mean of its divisors is an integer number (10988544).

Almost surely, 2^40814579 is an apocalyptic number.

40814579 is a deficient number, since it is larger than the sum of its proper divisors (3139597).

40814579 is a wasteful number, since it uses less digits than its factorization.

40814579 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3139596.

The product of its (nonzero) digits is 40320, while the sum is 38.

The square root of 40814579 is about 6388.6288826320. The cubic root of 40814579 is about 344.3011239056.

The spelling of 40814579 in words is "forty million, eight hundred fourteen thousand, five hundred seventy-nine".