203148432 has 40 divisors (see below), whose sum is σ = 583112480. Its totient is φ = 67716000.

The previous prime is 203148431. The next prime is 203148457. The reversal of 203148432 is 234841302.

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

It is a junction number, because it is equal to n+sod(n) for n = 203148396 and 203148405.

It is not an unprimeable number, because it can be changed into a prime (203148431) 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, 234694 + ... + 235557.

It is an arithmetic number, because the mean of its divisors is an integer number (14577812).

Almost surely, 2^203148432 is an apocalyptic number.

It is an amenable number.

203148432 is an abundant number, since it is smaller than the sum of its proper divisors (379964048).

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

203148432 is a wasteful number, since it uses less digits than its factorization.

203148432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 470268 (or 470256 counting only the distinct ones).

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

The square root of 203148432 is about 14253.0148389735. The cubic root of 203148432 is about 587.8562747429.

Adding to 203148432 its reverse (234841302), we get a palindrome (437989734).

The spelling of 203148432 in words is "two hundred three million, one hundred forty-eight thousand, four hundred thirty-two".