384404413 has 2 divisors, whose sum is σ = 384404414. Its totient is φ = 384404412.

The previous prime is 384404369. The next prime is 384404429. The reversal of 384404413 is 314404483.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 354832569 + 29571844 = 18837^2 + 5438^2 .

It is an emirp because it is prime and its reverse (314404483) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-384404413 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (384404453) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 192202206 + 192202207.

It is an arithmetic number, because the mean of its divisors is an integer number (192202207).

Almost surely, 2^384404413 is an apocalyptic number.

It is an amenable number.

384404413 is a deficient number, since it is larger than the sum of its proper divisors (1).

384404413 is an equidigital number, since it uses as much as digits as its factorization.

384404413 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 18432, while the sum is 31.

The square root of 384404413 is about 19606.2340341025. The cubic root of 384404413 is about 727.1033098286.

Adding to 384404413 its reverse (314404483), we get a palindrome (698808896).

The spelling of 384404413 in words is "three hundred eighty-four million, four hundred four thousand, four hundred thirteen".