40004427 has 16 divisors (see below), whose sum is σ = 56010240. Its totient is φ = 25361952.

The previous prime is 40004413. The next prime is 40004467. The reversal of 40004427 is 72440004.

40004427 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 40004427 - 2⁸ = 40004171 is a prime.

It is not an unprimeable number, because it can be changed into a prime (40004407) 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 15 ways as a sum of consecutive naturals, for example, 2398 + ... + 9260.

It is an arithmetic number, because the mean of its divisors is an integer number (3500640).

Almost surely, 2^40004427 is an apocalyptic number.

40004427 is a deficient number, since it is larger than the sum of its proper divisors (16005813).

40004427 is a wasteful number, since it uses less digits than its factorization.

40004427 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6962.

The product of its (nonzero) digits is 896, while the sum is 21.

The square root of 40004427 is about 6324.9052957337. The cubic root of 40004427 is about 342.0078056424.

The spelling of 40004427 in words is "forty million, four thousand, four hundred twenty-seven".