20380168 has 16 divisors (see below), whose sum is σ = 38468160. Its totient is φ = 10122000.

The previous prime is 20380123. The next prime is 20380169. The reversal of 20380168 is 86108302.

It is not an unprimeable number, because it can be changed into a prime (20380169) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7228 + ... + 9643.

It is an arithmetic number, because the mean of its divisors is an integer number (2404260).

Almost surely, 2^20380168 is an apocalyptic number.

It is an amenable number.

20380168 is a deficient number, since it is larger than the sum of its proper divisors (18087992).

20380168 is a wasteful number, since it uses less digits than its factorization.

20380168 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17028 (or 17024 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 28.

The square root of 20380168 is about 4514.4399431159. The cubic root of 20380168 is about 273.1508690350.

The spelling of 20380168 in words is "twenty million, three hundred eighty thousand, one hundred sixty-eight".