210442242 has 8 divisors (see below), whose sum is σ = 420884496. Its totient is φ = 70147412.

The previous prime is 210442237. The next prime is 210442307. The reversal of 210442242 is 242244012.

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

210442242 is an admirable number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17536848 + ... + 17536859.

It is an arithmetic number, because the mean of its divisors is an integer number (52610562).

Almost surely, 2^210442242 is an apocalyptic number.

210442242 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

210442242 is a wasteful number, since it uses less digits than its factorization.

210442242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35073712.

The product of its (nonzero) digits is 1024, while the sum is 21.

The square root of 210442242 is about 14506.6275198614. The cubic root of 210442242 is about 594.8091490619.

Adding to 210442242 its reverse (242244012), we get a palindrome (452686254).

The spelling of 210442242 in words is "two hundred ten million, four hundred forty-two thousand, two hundred forty-two".