40042079227 has 4 divisors (see below), whose sum is σ = 40157474616. Its totient is φ = 39926683840.

The previous prime is 40042079213. The next prime is 40042079243. The reversal of 40042079227 is 72297024004.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-40042079227 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40042079257) 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, 57697174 + ... + 57697867.

It is an arithmetic number, because the mean of its divisors is an integer number (10039368654).

Almost surely, 2^40042079227 is an apocalyptic number.

40042079227 is a deficient number, since it is larger than the sum of its proper divisors (115395389).

40042079227 is a wasteful number, since it uses less digits than its factorization.

40042079227 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 115395388.

The product of its (nonzero) digits is 56448, while the sum is 37.

The spelling of 40042079227 in words is "forty billion, forty-two million, seventy-nine thousand, two hundred twenty-seven".