203808340 has 24 divisors (see below), whose sum is σ = 434028672. Its totient is φ = 80374560.

The previous prime is 203808331. The next prime is 203808343. The reversal of 203808340 is 43808302.

203808340 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 203808299 and 203808308.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (203808343) 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, 70344 + ... + 73183.

It is an arithmetic number, because the mean of its divisors is an integer number (18084528).

Almost surely, 2^203808340 is an apocalyptic number.

203808340 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

203808340 is an abundant number, since it is smaller than the sum of its proper divisors (230220332).

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

203808340 is a wasteful number, since it uses less digits than its factorization.

203808340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 143607 (or 143605 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 28.

The square root of 203808340 is about 14276.1458384257. The cubic root of 203808340 is about 588.4921181325.

The spelling of 203808340 in words is "two hundred three million, eight hundred eight thousand, three hundred forty".