478538419 has 4 divisors (see below), whose sum is σ = 478607896. Its totient is φ = 478468944.

The previous prime is 478538407. The next prime is 478538507. The reversal of 478538419 is 914835874.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 914835874 = 2 ⋅457417937.

It is a cyclic number.

It is not a de Polignac number, because 478538419 - 2⁵ = 478538387 is a prime.

It is a super-2 number, since 2×478538419² = 457998036918039122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (478538519) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 23109 + ... + 38614.

It is an arithmetic number, because the mean of its divisors is an integer number (119651974).

Almost surely, 2^478538419 is an apocalyptic number.

478538419 is a deficient number, since it is larger than the sum of its proper divisors (69477).

478538419 is an equidigital number, since it uses as much as digits as its factorization.

478538419 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 69476.

The product of its digits is 967680, while the sum is 49.

The square root of 478538419 is about 21875.5209995099. The cubic root of 478538419 is about 782.1780124483.

The spelling of 478538419 in words is "four hundred seventy-eight million, five hundred thirty-eight thousand, four hundred nineteen".