40011427 has 2 divisors, whose sum is σ = 40011428. Its totient is φ = 40011426.

The previous prime is 40011407. The next prime is 40011431. The reversal of 40011427 is 72411004.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 40011427 - 2⁷ = 40011299 is a prime.

It is not a weakly prime, because it can be changed into another prime (40011407) 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 as a sum of consecutive naturals, namely, 20005713 + 20005714.

It is an arithmetic number, because the mean of its divisors is an integer number (20005714).

Almost surely, 2^40011427 is an apocalyptic number.

40011427 is a deficient number, since it is larger than the sum of its proper divisors (1).

40011427 is an equidigital number, since it uses as much as digits as its factorization.

40011427 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 224, while the sum is 19.

The square root of 40011427 is about 6325.4586394980. The cubic root of 40011427 is about 342.0277527266.

The spelling of 40011427 in words is "forty million, eleven thousand, four hundred twenty-seven".