40004227 has 4 divisors (see below), whose sum is σ = 40660096. Its totient is φ = 39348360.

The previous prime is 40004203. The next prime is 40004231. The reversal of 40004227 is 72240004.

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 40004227 - 2¹⁹ = 39479939 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40004267) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 327843 + ... + 327964.

It is an arithmetic number, because the mean of its divisors is an integer number (10165024).

Almost surely, 2^40004227 is an apocalyptic number.

40004227 is a deficient number, since it is larger than the sum of its proper divisors (655869).

40004227 is an equidigital number, since it uses as much as digits as its factorization.

40004227 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 655868.

The product of its (nonzero) digits is 448, while the sum is 19.

The square root of 40004227 is about 6324.8894852005. The cubic root of 40004227 is about 342.0072356916.

The spelling of 40004227 in words is "forty million, four thousand, two hundred twenty-seven".