478319505 has 16 divisors (see below), whose sum is σ = 765941184. Its totient is φ = 254893760.

The previous prime is 478319473. The next prime is 478319519. The reversal of 478319505 is 505913874.

It is not a de Polignac number, because 478319505 - 2⁵ = 478319473 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6670 + ... + 31640.

It is an arithmetic number, because the mean of its divisors is an integer number (47871324).

Almost surely, 2^478319505 is an apocalyptic number.

It is an amenable number.

478319505 is a deficient number, since it is larger than the sum of its proper divisors (287621679).

478319505 is a wasteful number, since it uses less digits than its factorization.

478319505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26256.

The product of its (nonzero) digits is 151200, while the sum is 42.

The square root of 478319505 is about 21870.5167977348. The cubic root of 478319505 is about 782.0587215494.

The spelling of 478319505 in words is "four hundred seventy-eight million, three hundred nineteen thousand, five hundred five".