203421652 has 24 divisors (see below), whose sum is σ = 407272320. Its totient is φ = 87088800.

The previous prime is 203421649. The next prime is 203421661. The reversal of 203421652 is 256124302.

203421652 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 27777 + ... + 34327.

It is an arithmetic number, because the mean of its divisors is an integer number (16969680).

Almost surely, 2^203421652 is an apocalyptic number.

It is an amenable number.

203421652 is an abundant number, since it is smaller than the sum of its proper divisors (203850668).

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

203421652 is a wasteful number, since it uses less digits than its factorization.

203421652 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7671 (or 7669 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 25.

The square root of 203421652 is about 14262.5962573439. The cubic root of 203421652 is about 588.1196981238.

Adding to 203421652 its reverse (256124302), we get a palindrome (459545954).

The spelling of 203421652 in words is "two hundred three million, four hundred twenty-one thousand, six hundred fifty-two".