382405399 has 2 divisors, whose sum is σ = 382405400. Its totient is φ = 382405398.

The previous prime is 382405369. The next prime is 382405403. The reversal of 382405399 is 993504283.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 382405399 - 2¹⁷ = 382274327 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (382405349) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 191202699 + 191202700.

It is an arithmetic number, because the mean of its divisors is an integer number (191202700).

Almost surely, 2^382405399 is an apocalyptic number.

382405399 is a deficient number, since it is larger than the sum of its proper divisors (1).

382405399 is an equidigital number, since it uses as much as digits as its factorization.

382405399 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 233280, while the sum is 43.

The square root of 382405399 is about 19555.1885442202. The cubic root of 382405399 is about 725.8407362880.

The spelling of 382405399 in words is "three hundred eighty-two million, four hundred five thousand, three hundred ninety-nine".