203020442 has 8 divisors (see below), whose sum is σ = 304900500. Its totient is φ = 101386944.

The previous prime is 203020429. The next prime is 203020451. The reversal of 203020442 is 244020302.

It can be written as a sum of positive squares in 2 ways, for example, as 188815081 + 14205361 = 13741^2 + 3769^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 203020442.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 59567 + ... + 62882.

Almost surely, 2^203020442 is an apocalyptic number.

203020442 is a deficient number, since it is larger than the sum of its proper divisors (101880058).

203020442 is a wasteful number, since it uses less digits than its factorization.

203020442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 123280.

The product of its (nonzero) digits is 384, while the sum is 17.

The square root of 203020442 is about 14248.5242042816. The cubic root of 203020442 is about 587.7327927310.

Adding to 203020442 its reverse (244020302), we get a palindrome (447040744).

The spelling of 203020442 in words is "two hundred three million, twenty thousand, four hundred forty-two".