163478928 has 40 divisors (see below), whose sum is σ = 428632288. Its totient is φ = 53678592.

The previous prime is 163478927. The next prime is 163478933. The reversal of 163478928 is 829874361.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is not an unprimeable number, because it can be changed into a prime (163478921) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22201 + ... + 28632.

Almost surely, 2^163478928 is an apocalyptic number.

It is an amenable number.

163478928 is an abundant number, since it is smaller than the sum of its proper divisors (265153360).

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

163478928 is a wasteful number, since it uses less digits than its factorization.

163478928 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50911 (or 50905 counting only the distinct ones).

The product of its digits is 580608, while the sum is 48.

The square root of 163478928 is about 12785.8878455898. The cubic root of 163478928 is about 546.7900382537.

The spelling of 163478928 in words is "one hundred sixty-three million, four hundred seventy-eight thousand, nine hundred twenty-eight".