40304879 has 2 divisors, whose sum is σ = 40304880. Its totient is φ = 40304878.

The previous prime is 40304861. The next prime is 40304881. The reversal of 40304879 is 97840304.

40304879 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 40304879 - 2⁸ = 40304623 is a prime.

Together with 40304881, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40304839) 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, 20152439 + 20152440.

It is an arithmetic number, because the mean of its divisors is an integer number (20152440).

Almost surely, 2^40304879 is an apocalyptic number.

40304879 is a deficient number, since it is larger than the sum of its proper divisors (1).

40304879 is an equidigital number, since it uses as much as digits as its factorization.

40304879 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 24192, while the sum is 35.

The square root of 40304879 is about 6348.6123680691. The cubic root of 40304879 is about 342.8618840036.

The spelling of 40304879 in words is "forty million, three hundred four thousand, eight hundred seventy-nine".