168424272 has 60 divisors (see below), whose sum is σ = 488822880. Its totient is φ = 56140128.

The previous prime is 168424241. The next prime is 168424273. The reversal of 168424272 is 272424861.

168424272 is a `hidden beast` number, since 168 + 424 + 2 + 72 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (168424273) 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, 17772 + ... + 25547.

It is an arithmetic number, because the mean of its divisors is an integer number (8147048).

Almost surely, 2^168424272 is an apocalyptic number.

168424272 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

168424272 is an abundant number, since it is smaller than the sum of its proper divisors (320398608).

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

168424272 is an equidigital number, since it uses as much as digits as its factorization.

168424272 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43342 (or 43324 counting only the distinct ones).

The product of its digits is 43008, while the sum is 36.

The square root of 168424272 is about 12977.8377243669. The cubic root of 168424272 is about 552.2489425347.

The spelling of 168424272 in words is "one hundred sixty-eight million, four hundred twenty-four thousand, two hundred seventy-two".