478464819 has 32 divisors (see below), whose sum is σ = 760467456. Its totient is φ = 261826560.

The previous prime is 478464817. The next prime is 478464829. The reversal of 478464819 is 918464874.

It is not a de Polignac number, because 478464819 - 2¹ = 478464817 is a prime.

It is a super-2 number, since 2×478464819² = 457857166041405522, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (478464817) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 59359 + ... + 66935.

It is an arithmetic number, because the mean of its divisors is an integer number (23764608).

Almost surely, 2^478464819 is an apocalyptic number.

478464819 is a deficient number, since it is larger than the sum of its proper divisors (282002637).

478464819 is a wasteful number, since it uses less digits than its factorization.

478464819 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7715.

The product of its digits is 1548288, while the sum is 51.

The square root of 478464819 is about 21873.8386891739. The cubic root of 478464819 is about 782.1379103018.

The spelling of 478464819 in words is "four hundred seventy-eight million, four hundred sixty-four thousand, eight hundred nineteen".