168705038 has 16 divisors (see below), whose sum is σ = 262393344. Its totient is φ = 81265080.

The previous prime is 168705029. The next prime is 168705049. The reversal of 168705038 is 830507861.

It is a super-2 number, since 2×168705038² = 56922779693162888, which contains 22 as substring.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 168704992 and 168705010.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8081 + ... + 20067.

It is an arithmetic number, because the mean of its divisors is an integer number (16399584).

Almost surely, 2^168705038 is an apocalyptic number.

168705038 is a deficient number, since it is larger than the sum of its proper divisors (93688306).

168705038 is a wasteful number, since it uses less digits than its factorization.

168705038 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12247.

The product of its (nonzero) digits is 40320, while the sum is 38.

The square root of 168705038 is about 12988.6503532892. The cubic root of 168705038 is about 552.5556414960. Note that the first 3 decimals are identical.

The spelling of 168705038 in words is "one hundred sixty-eight million, seven hundred five thousand, thirty-eight".