40718579 has 16 divisors (see below), whose sum is σ = 46621440. Its totient is φ = 35201760.

The previous prime is 40718551. The next prime is 40718603. The reversal of 40718579 is 97581704.

It is not a de Polignac number, because 40718579 - 2¹² = 40714483 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40718879) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 57077 + ... + 57785.

It is an arithmetic number, because the mean of its divisors is an integer number (2913840).

Almost surely, 2^40718579 is an apocalyptic number.

40718579 is a deficient number, since it is larger than the sum of its proper divisors (5902861).

40718579 is a wasteful number, since it uses less digits than its factorization.

40718579 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 970.

The product of its (nonzero) digits is 70560, while the sum is 41.

The square root of 40718579 is about 6381.1111101437. Note that the first 5 decimals coincide. The cubic root of 40718579 is about 344.0309683451.

The spelling of 40718579 in words is "forty million, seven hundred eighteen thousand, five hundred seventy-nine".