168774944 has 24 divisors (see below), whose sum is σ = 357836220. Its totient is φ = 77895936.

The previous prime is 168774941. The next prime is 168774953. The reversal of 168774944 is 449477861.

It can be written as a sum of positive squares in 2 ways, for example, as 141610000 + 27164944 = 11900^2 + 5212^2 .

It is a junction number, because it is equal to n+sod(n) for n = 168774892 and 168774901.

It is not an unprimeable number, because it can be changed into a prime (168774941) 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, 202439 + ... + 203270.

Almost surely, 2^168774944 is an apocalyptic number.

It is an amenable number.

168774944 is an abundant number, since it is smaller than the sum of its proper divisors (189061276).

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

168774944 is a wasteful number, since it uses less digits than its factorization.

168774944 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 405732 (or 405724 counting only the distinct ones).

The product of its digits is 1354752, while the sum is 50.

The square root of 168774944 is about 12991.3411162974. The cubic root of 168774944 is about 552.6319514492.

The spelling of 168774944 in words is "one hundred sixty-eight million, seven hundred seventy-four thousand, nine hundred forty-four".