210442124 has 24 divisors (see below), whose sum is σ = 377243328. Its totient is φ = 102672000.

The previous prime is 210442123. The next prime is 210442139. The reversal of 210442124 is 421244012.

It is a junction number, because it is equal to n+sod(n) for n = 210442096 and 210442105.

It is not an unprimeable number, because it can be changed into a prime (210442123) by changing a digit.

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, 68624 + ... + 71624.

It is an arithmetic number, because the mean of its divisors is an integer number (15718472).

Almost surely, 2^210442124 is an apocalyptic number.

It is an amenable number.

210442124 is a deficient number, since it is larger than the sum of its proper divisors (166801204).

210442124 is a wasteful number, since it uses less digits than its factorization.

210442124 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3425 (or 3423 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 20.

The square root of 210442124 is about 14506.6234527543. The cubic root of 210442124 is about 594.8090378874.

Adding to 210442124 its reverse (421244012), we get a palindrome (631686136).

The spelling of 210442124 in words is "two hundred ten million, four hundred forty-two thousand, one hundred twenty-four".