202003442 has 4 divisors (see below), whose sum is σ = 303005166. Its totient is φ = 101001720.

The previous prime is 202003429. The next prime is 202003447. The reversal of 202003442 is 244300202.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 132963961 + 69039481 = 11531^2 + 8309^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 202003442.

It is not an unprimeable number, because it can be changed into a prime (202003447) by changing a digit.

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 as a sum of consecutive naturals, namely, 50500859 + ... + 50500862.

Almost surely, 2^202003442 is an apocalyptic number.

202003442 is a deficient number, since it is larger than the sum of its proper divisors (101001724).

202003442 is a wasteful number, since it uses less digits than its factorization.

202003442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 101001723.

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

The square root of 202003442 is about 14212.7914921735. The cubic root of 202003442 is about 586.7497634676.

Adding to 202003442 its reverse (244300202), we get a palindrome (446303644).

The spelling of 202003442 in words is "two hundred two million, three thousand, four hundred forty-two".