40305347 has 2 divisors, whose sum is σ = 40305348. Its totient is φ = 40305346.

The previous prime is 40305313. The next prime is 40305371. The reversal of 40305347 is 74350304.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 40305347 - 2¹⁰ = 40304323 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (40305047) 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, 20152673 + 20152674.

It is an arithmetic number, because the mean of its divisors is an integer number (20152674).

Almost surely, 2^40305347 is an apocalyptic number.

40305347 is a deficient number, since it is larger than the sum of its proper divisors (1).

40305347 is an equidigital number, since it uses as much as digits as its factorization.

40305347 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5040, while the sum is 26.

The square root of 40305347 is about 6348.6492264103. The cubic root of 40305347 is about 342.8632110450.

The spelling of 40305347 in words is "forty million, three hundred five thousand, three hundred forty-seven".