210298842 has 80 divisors (see below), whose sum is σ = 516107592. Its totient is φ = 63607680.

The previous prime is 210298841. The next prime is 210298849. The reversal of 210298842 is 248892012.

210298842 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 28291761 + 182007081 = 5319^2 + 13491^2 .

It is a junction number, because it is equal to n+sod(n) for n = 210298797 and 210298806.

It is not an unprimeable number, because it can be changed into a prime (210298841) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 127648 + ... + 129284.

Almost surely, 2^210298842 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 210298842, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (258053796).

210298842 is an abundant number, since it is smaller than the sum of its proper divisors (305808750).

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

210298842 is a wasteful number, since it uses less digits than its factorization.

210298842 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1725 (or 1716 counting only the distinct ones).

The product of its (nonzero) digits is 18432, while the sum is 36.

The square root of 210298842 is about 14501.6841090957. The cubic root of 210298842 is about 594.6740129907.

The spelling of 210298842 in words is "two hundred ten million, two hundred ninety-eight thousand, eight hundred forty-two".