203840772 has 48 divisors (see below), whose sum is σ = 485635584. Its totient is φ = 66528000.

The previous prime is 203840687. The next prime is 203840773. The reversal of 203840772 is 277048302.

It is a zygodrome in base 13.

It is not an unprimeable number, because it can be changed into a prime (203840773) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 205197 + ... + 206187.

It is an arithmetic number, because the mean of its divisors is an integer number (10117408).

Almost surely, 2^203840772 is an apocalyptic number.

It is an amenable number.

203840772 is an abundant number, since it is smaller than the sum of its proper divisors (281794812).

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

203840772 is a wasteful number, since it uses less digits than its factorization.

203840772 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1340 (or 1338 counting only the distinct ones).

The product of its (nonzero) digits is 18816, while the sum is 33.

The square root of 203840772 is about 14277.2816740443. The cubic root of 203840772 is about 588.5233320401.

The spelling of 203840772 in words is "two hundred three million, eight hundred forty thousand, seven hundred seventy-two".