168039364 has 6 divisors (see below), whose sum is σ = 294068894. Its totient is φ = 84019680.

The previous prime is 168039343. The next prime is 168039383. The reversal of 168039364 is 463930861.

It can be written as a sum of positive squares in only one way, i.e., 167909764 + 129600 = 12958^2 + 360^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21004917 + ... + 21004924.

Almost surely, 2^168039364 is an apocalyptic number.

It is an amenable number.

168039364 is a deficient number, since it is larger than the sum of its proper divisors (126029530).

168039364 is a wasteful number, since it uses less digits than its factorization.

168039364 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42009845 (or 42009843 counting only the distinct ones).

The product of its (nonzero) digits is 93312, while the sum is 40.

The square root of 168039364 is about 12962.9998071434. Note that the first 3 decimals coincide. The cubic root of 168039364 is about 551.8279280580.

The spelling of 168039364 in words is "one hundred sixty-eight million, thirty-nine thousand, three hundred sixty-four".