478149318 has 20 divisors (see below), whose sum is σ = 1071409020. Its totient is φ = 159383052.

The previous prime is 478149281. The next prime is 478149341. The reversal of 478149318 is 813941874.

It is a happy number.

478149318 is a `hidden beast` number, since 478 + 149 + 31 + 8 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 1475608 + ... + 1475931.

It is an arithmetic number, because the mean of its divisors is an integer number (53570451).

Almost surely, 2^478149318 is an apocalyptic number.

478149318 is an abundant number, since it is smaller than the sum of its proper divisors (593259702).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

478149318 is a wasteful number, since it uses less digits than its factorization.

478149318 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2951553 (or 2951544 counting only the distinct ones).

The product of its digits is 193536, while the sum is 45.

The square root of 478149318 is about 21866.6256656120. The cubic root of 478149318 is about 781.9659578808.

The spelling of 478149318 in words is "four hundred seventy-eight million, one hundred forty-nine thousand, three hundred eighteen".