478306466 has 24 divisors (see below), whose sum is σ = 793698780. Its totient is φ = 216010080.

The previous prime is 478306457. The next prime is 478306469. The reversal of 478306466 is 664603874.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 420865225 + 57441241 = 20515^2 + 7579^2 .

It is a super-3 number, since 3×478306466³ (a number of 27 digits) contains 333 as substring.

It is a Smith number, since the sum of its digits (44) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (478306469) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 31700 + ... + 44288.

Almost surely, 2^478306466 is an apocalyptic number.

478306466 is a deficient number, since it is larger than the sum of its proper divisors (315392314).

478306466 is a wasteful number, since it uses less digits than its factorization.

478306466 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12770 (or 12759 counting only the distinct ones).

The product of its (nonzero) digits is 580608, while the sum is 44.

The square root of 478306466 is about 21870.2187003240. The cubic root of 478306466 is about 782.0516151723.

The spelling of 478306466 in words is "four hundred seventy-eight million, three hundred six thousand, four hundred sixty-six".