43394413 has 2 divisors, whose sum is σ = 43394414. Its totient is φ = 43394412.

The previous prime is 43394401. The next prime is 43394437. The reversal of 43394413 is 31449334.

43394413 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 can be written as a sum of positive squares in only one way, i.e., 34140649 + 9253764 = 5843^2 + 3042^2 .

It is a cyclic number.

It is not a de Polignac number, because 43394413 - 2¹³ = 43386221 is a prime.

It is a super-2 number, since 2×43394413² = 3766150159229138, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (43394453) 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, 21697206 + 21697207.

It is an arithmetic number, because the mean of its divisors is an integer number (21697207).

Almost surely, 2^43394413 is an apocalyptic number.

It is an amenable number.

43394413 is a deficient number, since it is larger than the sum of its proper divisors (1).

43394413 is an equidigital number, since it uses as much as digits as its factorization.

43394413 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 15552, while the sum is 31.

The square root of 43394413 is about 6587.4435860962. The cubic root of 43394413 is about 351.4076993528.

The spelling of 43394413 in words is "forty-three million, three hundred ninety-four thousand, four hundred thirteen".