203045688 has 48 divisors (see below), whose sum is σ = 582266880. Its totient is φ = 63700224.

The previous prime is 203045669. The next prime is 203045743. The reversal of 203045688 is 886540302.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 81720 + ... + 84167.

It is an arithmetic number, because the mean of its divisors is an integer number (12130560).

Almost surely, 2^203045688 is an apocalyptic number.

It is an amenable number.

203045688 is an abundant number, since it is smaller than the sum of its proper divisors (379221192).

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

203045688 is a wasteful number, since it uses less digits than its factorization.

203045688 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 165916 (or 165909 counting only the distinct ones).

The product of its (nonzero) digits is 46080, while the sum is 36.

The square root of 203045688 is about 14249.4100930530. The cubic root of 203045688 is about 587.7571536393.

The spelling of 203045688 in words is "two hundred three million, forty-five thousand, six hundred eighty-eight".