168389472 has 48 divisors (see below), whose sum is σ = 443363760. Its totient is φ = 55959552.

The previous prime is 168389467. The next prime is 168389497. The reversal of 168389472 is 274983861.

168389472 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (48).

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

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 31404 + ... + 36372.

It is an arithmetic number, because the mean of its divisors is an integer number (9236745).

Almost surely, 2^168389472 is an apocalyptic number.

168389472 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

168389472 is an abundant number, since it is smaller than the sum of its proper divisors (274974288).

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

168389472 is a wasteful number, since it uses less digits than its factorization.

168389472 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5335 (or 5327 counting only the distinct ones).

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

The square root of 168389472 is about 12976.4969078716. The cubic root of 168389472 is about 552.2109044959.

It can be divided in two parts, 168389 and 472, that added together give a palindrome (168861).

The spelling of 168389472 in words is "one hundred sixty-eight million, three hundred eighty-nine thousand, four hundred seventy-two".