168242724 has 48 divisors (see below), whose sum is σ = 469741440. Its totient is φ = 51766560.

The previous prime is 168242719. The next prime is 168242731. The reversal of 168242724 is 427242861.

168242724 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×168242724² = 56611228357880352, which contains 22 as substring.

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

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 15 ways as a sum of consecutive naturals, for example, 58512 + ... + 61319.

It is an arithmetic number, because the mean of its divisors is an integer number (9786280).

Almost surely, 2^168242724 is an apocalyptic number.

It is an amenable number.

168242724 is an abundant number, since it is smaller than the sum of its proper divisors (301498716).

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

168242724 is a wasteful number, since it uses less digits than its factorization.

168242724 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 119857 (or 119849 counting only the distinct ones).

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

The square root of 168242724 is about 12970.8412988518. The cubic root of 168242724 is about 552.0504443503.

The spelling of 168242724 in words is "one hundred sixty-eight million, two hundred forty-two thousand, seven hundred twenty-four".