40998427 has 2 divisors, whose sum is σ = 40998428. Its totient is φ = 40998426.

The previous prime is 40998421. The next prime is 40998437. The reversal of 40998427 is 72489904.

40998427 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-40998427 is a prime.

It is not a weakly prime, because it can be changed into another prime (40998421) 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 as a sum of consecutive naturals, namely, 20499213 + 20499214.

It is an arithmetic number, because the mean of its divisors is an integer number (20499214).

Almost surely, 2^40998427 is an apocalyptic number.

40998427 is a deficient number, since it is larger than the sum of its proper divisors (1).

40998427 is an equidigital number, since it uses as much as digits as its factorization.

40998427 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 145152, while the sum is 43.

The square root of 40998427 is about 6403.0014055910. The cubic root of 40998427 is about 344.8173141886.

The spelling of 40998427 in words is "forty million, nine hundred ninety-eight thousand, four hundred twenty-seven".