203228460 has 96 divisors (see below), whose sum is σ = 659796480. Its totient is φ = 51834816.

The previous prime is 203228411. The next prime is 203228461. The reversal of 203228460 is 64822302.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (203228461) 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 31 ways as a sum of consecutive naturals, for example, 4239 + ... + 20601.

It is an arithmetic number, because the mean of its divisors is an integer number (6872880).

Almost surely, 2^203228460 is an apocalyptic number.

203228460 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 203228460, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (329898240).

203228460 is an abundant number, since it is smaller than the sum of its proper divisors (456568020).

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

203228460 is a wasteful number, since it uses less digits than its factorization.

203228460 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16404 (or 16396 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 27.

The square root of 203228460 is about 14255.8219685853. The cubic root of 203228460 is about 587.9334576927.

It can be divided in two parts, 20322 and 8460, that added together give a palindrome (28782).

The spelling of 203228460 in words is "two hundred three million, two hundred twenty-eight thousand, four hundred sixty".