210235242 has 32 divisors (see below), whose sum is σ = 496041984. Its totient is φ = 58129200.

The previous prime is 210235217. The next prime is 210235261. The reversal of 210235242 is 242532012.

It is a Harshad number since it is a multiple of its sum of digits (21).

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, 79434 + ... + 82037.

It is an arithmetic number, because the mean of its divisors is an integer number (15501312).

Almost surely, 2^210235242 is an apocalyptic number.

210235242 is an abundant number, since it is smaller than the sum of its proper divisors (285806742).

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

210235242 is a wasteful number, since it uses less digits than its factorization.

210235242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 161514.

The product of its (nonzero) digits is 960, while the sum is 21.

The square root of 210235242 is about 14499.4910945178. The cubic root of 210235242 is about 594.6140584989.

Adding to 210235242 its reverse (242532012), we get a palindrome (452767254).

The spelling of 210235242 in words is "two hundred ten million, two hundred thirty-five thousand, two hundred forty-two".