20168200 has 48 divisors (see below), whose sum is σ = 50504580. Its totient is φ = 7445760.

The previous prime is 20168191. The next prime is 20168209. The reversal of 20168200 is 286102.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (20168191) and next prime (20168209).

It can be written as a sum of positive squares in 6 ways, for example, as 6874884 + 13293316 = 2622^2 + 3646^2 .

It is not an unprimeable number, because it can be changed into a prime (20168209) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1279 + ... + 6478.

Almost surely, 2^20168200 is an apocalyptic number.

20168200 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20168200 is an abundant number, since it is smaller than the sum of its proper divisors (30336380).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20168200 is a wasteful number, since it uses less digits than its factorization.

20168200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7786 (or 7777 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 19.

The square root of 20168200 is about 4490.9019138699. The cubic root of 20168200 is about 272.2005801358.

The spelling of 20168200 in words is "twenty million, one hundred sixty-eight thousand, two hundred".