203997168 has 60 divisors (see below), whose sum is σ = 573975168. Its totient is φ = 67633920.

The previous prime is 203997163. The next prime is 203997253. The reversal of 203997168 is 861799302.

It is a super-2 number, since 2×203997168² = 83229689104040448, which contains 22 as substring.

It is a plaindrome in base 13.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (203997163) 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, 23796 + ... + 31212.

Almost surely, 2^203997168 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 203997168, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (286987584).

203997168 is an abundant number, since it is smaller than the sum of its proper divisors (369978000).

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

203997168 is a wasteful number, since it uses less digits than its factorization.

203997168 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7622 (or 7613 counting only the distinct ones).

The product of its (nonzero) digits is 163296, while the sum is 45.

The square root of 203997168 is about 14282.7577169117. The cubic root of 203997168 is about 588.6738076039.

The spelling of 203997168 in words is "two hundred three million, nine hundred ninety-seven thousand, one hundred sixty-eight".