203868380 has 12 divisors (see below), whose sum is σ = 428123640. Its totient is φ = 81547344.

The previous prime is 203868377. The next prime is 203868397. The reversal of 203868380 is 83868302.

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 3 ways as a sum of consecutive naturals, for example, 5096690 + ... + 5096729.

It is an arithmetic number, because the mean of its divisors is an integer number (35676970).

Almost surely, 2^203868380 is an apocalyptic number.

203868380 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

203868380 is an abundant number, since it is smaller than the sum of its proper divisors (224255260).

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

203868380 is a wasteful number, since it uses less digits than its factorization.

203868380 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10193428 (or 10193426 counting only the distinct ones).

The product of its (nonzero) digits is 55296, while the sum is 38.

The square root of 203868380 is about 14278.2484920245. The cubic root of 203868380 is about 588.5499005205.

The spelling of 203868380 in words is "two hundred three million, eight hundred sixty-eight thousand, three hundred eighty".