163673472 has 32 divisors (see below), whose sum is σ = 434758680. Its totient is φ = 54557696.

The previous prime is 163673417. The next prime is 163673479. The reversal of 163673472 is 274376361.

It is a tau number, because it is divible by the number of its divisors (32).

It is a self number, because there is not a number n which added to its sum of digits gives 163673472.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (163673479) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 212733 + ... + 213500.

Almost surely, 2^163673472 is an apocalyptic number.

163673472 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

163673472 is an abundant number, since it is smaller than the sum of its proper divisors (271085208).

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

163673472 is an equidigital number, since it uses as much as digits as its factorization.

163673472 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 426250 (or 426238 counting only the distinct ones).

The product of its digits is 127008, while the sum is 39.

The square root of 163673472 is about 12793.4933462288. The cubic root of 163673472 is about 547.0068501984.

The spelling of 163673472 in words is "one hundred sixty-three million, six hundred seventy-three thousand, four hundred seventy-two".