210342442 has 8 divisors (see below), whose sum is σ = 315881856. Its totient is φ = 105048492.

The previous prime is 210342439. The next prime is 210342487. The reversal of 210342442 is 244243012.

It is a happy number.

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 59208 + ... + 62659.

It is an arithmetic number, because the mean of its divisors is an integer number (39485232).

Almost surely, 2^210342442 is an apocalyptic number.

210342442 is a deficient number, since it is larger than the sum of its proper divisors (105539414).

210342442 is a wasteful number, since it uses less digits than its factorization.

210342442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 122732.

The product of its (nonzero) digits is 1536, while the sum is 22.

The square root of 210342442 is about 14503.1873048651. The cubic root of 210342442 is about 594.7151068853.

Adding to 210342442 its reverse (244243012), we get a palindrome (454585454).

The spelling of 210342442 in words is "two hundred ten million, three hundred forty-two thousand, four hundred forty-two".