210310042 has 8 divisors (see below), whose sum is σ = 321417396. Its totient is φ = 103170912.

The previous prime is 210310027. The next prime is 210310049. The reversal of 210310042 is 240013012.

It can be written as a sum of positive squares in 2 ways, for example, as 202464441 + 7845601 = 14229^2 + 2801^2 .

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

It is not an unprimeable number, because it can be changed into a prime (210310049) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 991923 + ... + 992134.

Almost surely, 2^210310042 is an apocalyptic number.

210310042 is a deficient number, since it is larger than the sum of its proper divisors (111107354).

210310042 is a wasteful number, since it uses less digits than its factorization.

210310042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1984112.

The product of its (nonzero) digits is 48, while the sum is 13.

The square root of 210310042 is about 14502.0702660000. The cubic root of 210310042 is about 594.6845697626.

Adding to 210310042 its reverse (240013012), we get a palindrome (450323054).

The spelling of 210310042 in words is "two hundred ten million, three hundred ten thousand, forty-two".