168289036 has 6 divisors (see below), whose sum is σ = 294505820. Its totient is φ = 84144516.

The previous prime is 168289031. The next prime is 168289081. The reversal of 168289036 is 630982861.

It is a junction number, because it is equal to n+sod(n) for n = 168288983 and 168289001.

It is not an unprimeable number, because it can be changed into a prime (168289031) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21036126 + ... + 21036133.

Almost surely, 2^168289036 is an apocalyptic number.

It is an amenable number.

168289036 is a deficient number, since it is larger than the sum of its proper divisors (126216784).

168289036 is a wasteful number, since it uses less digits than its factorization.

168289036 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42072263 (or 42072261 counting only the distinct ones).

The product of its (nonzero) digits is 124416, while the sum is 43.

The square root of 168289036 is about 12972.6264110241. The cubic root of 168289036 is about 552.1010938208.

The spelling of 168289036 in words is "one hundred sixty-eight million, two hundred eighty-nine thousand, thirty-six".