203621472 has 48 divisors (see below), whose sum is σ = 593898480. Its totient is φ = 67873536.

The previous prime is 203621447. The next prime is 203621479. The reversal of 203621472 is 274126302.

It is a tau number, because it is divible by the number of its divisors (48).

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (203621479) 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, 116973 + ... + 118700.

It is an arithmetic number, because the mean of its divisors is an integer number (12372885).

Almost surely, 2^203621472 is an apocalyptic number.

It is an amenable number.

203621472 is an abundant number, since it is smaller than the sum of its proper divisors (390277008).

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

203621472 is a wasteful number, since it uses less digits than its factorization.

203621472 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 235692 (or 235678 counting only the distinct ones).

The product of its (nonzero) digits is 4032, while the sum is 27.

The square root of 203621472 is about 14269.5995739194. The cubic root of 203621472 is about 588.3122040489.

Adding to 203621472 its reverse (274126302), we get a palindrome (477747774).

The spelling of 203621472 in words is "two hundred three million, six hundred twenty-one thousand, four hundred seventy-two".