203197872 has 40 divisors (see below), whose sum is σ = 555808176. Its totient is φ = 63748096.

The previous prime is 203197871. The next prime is 203197937. The reversal of 203197872 is 278791302.

It is a self number, because there is not a number n which added to its sum of digits gives 203197872.

It is not an unprimeable number, because it can be changed into a prime (203197871) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 123693 + ... + 125324.

Almost surely, 2^203197872 is an apocalyptic number.

It is an amenable number.

203197872 is an abundant number, since it is smaller than the sum of its proper divisors (352610304).

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

203197872 is a wasteful number, since it uses less digits than its factorization.

203197872 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 249045 (or 249039 counting only the distinct ones).

The product of its (nonzero) digits is 42336, while the sum is 39.

The square root of 203197872 is about 14254.7491033690. The cubic root of 203197872 is about 587.9039595097.

The spelling of 203197872 in words is "two hundred three million, one hundred ninety-seven thousand, eight hundred seventy-two".