380391013 has 2 divisors, whose sum is σ = 380391014. Its totient is φ = 380391012.

The previous prime is 380391007. The next prime is 380391157. The reversal of 380391013 is 310193083.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 313183809 + 67207204 = 17697^2 + 8198^2 .

It is an emirp because it is prime and its reverse (310193083) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-380391013 is a prime.

It is equal to p_20345284 and since 380391013 and 20345284 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (380395013) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 190195506 + 190195507.

It is an arithmetic number, because the mean of its divisors is an integer number (190195507).

Almost surely, 2^380391013 is an apocalyptic number.

It is an amenable number.

380391013 is a deficient number, since it is larger than the sum of its proper divisors (1).

380391013 is an equidigital number, since it uses as much as digits as its factorization.

380391013 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1944, while the sum is 28.

The square root of 380391013 is about 19503.6153827951. The cubic root of 380391013 is about 724.5639949994.

The spelling of 380391013 in words is "three hundred eighty million, three hundred ninety-one thousand, thirteen".