203886140 has 24 divisors (see below), whose sum is σ = 431291952. Its totient is φ = 80958080.

The previous prime is 203886139. The next prime is 203886157. The reversal of 203886140 is 41688302.

It is a junction number, because it is equal to n+sod(n) for n = 203886097 and 203886106.

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 7 ways as a sum of consecutive naturals, for example, 34466 + ... + 39945.

It is an arithmetic number, because the mean of its divisors is an integer number (17970498).

Almost surely, 2^203886140 is an apocalyptic number.

203886140 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

203886140 is an abundant number, since it is smaller than the sum of its proper divisors (227405812).

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

203886140 is a wasteful number, since it uses less digits than its factorization.

203886140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 74557 (or 74555 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 32.

The square root of 203886140 is about 14278.8704035018. The cubic root of 203886140 is about 588.5669905383.

The spelling of 203886140 in words is "two hundred three million, eight hundred eighty-six thousand, one hundred forty".