478466419 has 2 divisors, whose sum is σ = 478466420. Its totient is φ = 478466418.

The previous prime is 478466413. The next prime is 478466473. The reversal of 478466419 is 914664874.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-478466419 is a prime.

It is a super-2 number, since 2×478466419² = 457860228221367122, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (478466413) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 239233209 + 239233210.

It is an arithmetic number, because the mean of its divisors is an integer number (239233210).

Almost surely, 2^478466419 is an apocalyptic number.

478466419 is a deficient number, since it is larger than the sum of its proper divisors (1).

478466419 is an equidigital number, since it uses as much as digits as its factorization.

478466419 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1161216, while the sum is 49.

The square root of 478466419 is about 21873.8752625135. The cubic root of 478466419 is about 782.1387821313.

The spelling of 478466419 in words is "four hundred seventy-eight million, four hundred sixty-six thousand, four hundred nineteen".