203030442 has 32 divisors (see below), whose sum is σ = 462188160. Its totient is φ = 66025440.

The previous prime is 203030437. The next prime is 203030461. The reversal of 203030442 is 244030302.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 43638 + ... + 48065.

It is an arithmetic number, because the mean of its divisors is an integer number (14443380).

Almost surely, 2^203030442 is an apocalyptic number.

203030442 is an abundant number, since it is smaller than the sum of its proper divisors (259157718).

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

203030442 is a wasteful number, since it uses less digits than its factorization.

203030442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 91755 (or 91749 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 18.

The square root of 203030442 is about 14248.8751134958. The cubic root of 203030442 is about 587.7424423856.

Adding to 203030442 its reverse (244030302), we get a palindrome (447060744).

The spelling of 203030442 in words is "two hundred three million, thirty thousand, four hundred forty-two".