203445452 has 72 divisors (see below), whose sum is σ = 428717520. Its totient is φ = 84188160.

The previous prime is 203445449. The next prime is 203445457. The reversal of 203445452 is 254544302.

203445452 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (203445457) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 844052 + ... + 844292.

It is an arithmetic number, because the mean of its divisors is an integer number (5954410).

Almost surely, 2^203445452 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 203445452, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (214358760).

203445452 is an abundant number, since it is smaller than the sum of its proper divisors (225272068).

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

203445452 is a wasteful number, since it uses less digits than its factorization.

203445452 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 391 (or 382 counting only the distinct ones).

The product of its (nonzero) digits is 19200, while the sum is 29.

The square root of 203445452 is about 14263.4305831381. The cubic root of 203445452 is about 588.1426335764.

Adding to 203445452 its reverse (254544302), we get a palindrome (457989754).

The spelling of 203445452 in words is "two hundred three million, four hundred forty-five thousand, four hundred fifty-two".