210044242 has 4 divisors (see below), whose sum is σ = 315066366. Its totient is φ = 105022120.

The previous prime is 210044239. The next prime is 210044243. The reversal of 210044242 is 242440012.

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., 204804721 + 5239521 = 14311^2 + 2289^2 .

It is not an unprimeable number, because it can be changed into a prime (210044243) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 52511059 + ... + 52511062.

Almost surely, 2^210044242 is an apocalyptic number.

210044242 is a deficient number, since it is larger than the sum of its proper divisors (105022124).

210044242 is a wasteful number, since it uses less digits than its factorization.

210044242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 105022123.

The product of its (nonzero) digits is 512, while the sum is 19.

The square root of 210044242 is about 14492.9031598227. The cubic root of 210044242 is about 594.4339337731.

Adding to 210044242 its reverse (242440012), we get a palindrome (452484254).

The spelling of 210044242 in words is "two hundred ten million, forty-four thousand, two hundred forty-two".