478304419 has 2 divisors, whose sum is σ = 478304420. Its totient is φ = 478304418.

The previous prime is 478304417. The next prime is 478304447. The reversal of 478304419 is 914403874.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 478304419 - 2¹ = 478304417 is a prime.

It is a super-2 number, since 2×478304419² = 457550234469855122, which contains 22 as substring.

Together with 478304417, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (478304413) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 239152209 + 239152210.

It is an arithmetic number, because the mean of its divisors is an integer number (239152210).

Almost surely, 2^478304419 is an apocalyptic number.

478304419 is a deficient number, since it is larger than the sum of its proper divisors (1).

478304419 is an equidigital number, since it uses as much as digits as its factorization.

478304419 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 96768, while the sum is 40.

The square root of 478304419 is about 21870.1719014735. The cubic root of 478304419 is about 782.0504995264.

The spelling of 478304419 in words is "four hundred seventy-eight million, three hundred four thousand, four hundred nineteen".