40034399 has 2 divisors, whose sum is σ = 40034400. Its totient is φ = 40034398.

The previous prime is 40034389. The next prime is 40034411. The reversal of 40034399 is 99343004.

40034399 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 not a de Polignac number, because 40034399 - 2¹² = 40030303 is a prime.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40034339) 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, 20017199 + 20017200.

It is an arithmetic number, because the mean of its divisors is an integer number (20017200).

Almost surely, 2^40034399 is an apocalyptic number.

40034399 is a deficient number, since it is larger than the sum of its proper divisors (1).

40034399 is an equidigital number, since it uses as much as digits as its factorization.

40034399 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 11664, while the sum is 32.

The square root of 40034399 is about 6327.2742156477. The cubic root of 40034399 is about 342.0931970170.

The spelling of 40034399 in words is "forty million, thirty-four thousand, three hundred ninety-nine".