168380944 has 10 divisors (see below), whose sum is σ = 326238110. Its totient is φ = 84190464.

The previous prime is 168380939. The next prime is 168380963. The reversal of 168380944 is 449083861.

It can be written as a sum of positive squares in only one way, i.e., 153264400 + 15116544 = 12380^2 + 3888^2 .

It is a super-2 number, since 2×168380944² = 56704284604662272, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 168380944.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5261889 + ... + 5261920.

It is an arithmetic number, because the mean of its divisors is an integer number (32623811).

Almost surely, 2^168380944 is an apocalyptic number.

It is an amenable number.

168380944 is a deficient number, since it is larger than the sum of its proper divisors (157857166).

168380944 is a wasteful number, since it uses less digits than its factorization.

168380944 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10523817 (or 10523811 counting only the distinct ones).

The product of its (nonzero) digits is 165888, while the sum is 43.

The square root of 168380944 is about 12976.1683096359. The cubic root of 168380944 is about 552.2015821908.

The spelling of 168380944 in words is "one hundred sixty-eight million, three hundred eighty thousand, nine hundred forty-four".