384945419 has 2 divisors, whose sum is σ = 384945420. Its totient is φ = 384945418.

The previous prime is 384945403. The next prime is 384945437. The reversal of 384945419 is 914549483.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 384945419 - 2⁴ = 384945403 is a prime.

It is a super-2 number, since 2×384945419² = 296365951218171122, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (384945479) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 192472709 + 192472710.

It is an arithmetic number, because the mean of its divisors is an integer number (192472710).

Almost surely, 2^384945419 is an apocalyptic number.

384945419 is a deficient number, since it is larger than the sum of its proper divisors (1).

384945419 is an equidigital number, since it uses as much as digits as its factorization.

384945419 is an evil number, because the sum of its binary digits is even.

The product of its digits is 622080, while the sum is 47.

The square root of 384945419 is about 19620.0259683824. The cubic root of 384945419 is about 727.4442553225. Note that the first 3 decimals are identical.

The spelling of 384945419 in words is "three hundred eighty-four million, nine hundred forty-five thousand, four hundred nineteen".