210235442 has 16 divisors (see below), whose sum is σ = 327317760. Its totient is φ = 101153808.

The previous prime is 210235423. The next prime is 210235453. The reversal of 210235442 is 244532012.

It is a happy number.

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 7 ways as a sum of consecutive naturals, for example, 11903 + ... + 23709.

It is an arithmetic number, because the mean of its divisors is an integer number (20457360).

Almost surely, 2^210235442 is an apocalyptic number.

210235442 is a deficient number, since it is larger than the sum of its proper divisors (117082318).

210235442 is a wasteful number, since it uses less digits than its factorization.

210235442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12145.

The product of its (nonzero) digits is 1920, while the sum is 23.

The square root of 210235442 is about 14499.4979913099. The cubic root of 210235442 is about 594.6142470540.

Adding to 210235442 its reverse (244532012), we get a palindrome (454767454).

The spelling of 210235442 in words is "two hundred ten million, two hundred thirty-five thousand, four hundred forty-two".