210642052 has 12 divisors (see below), whose sum is σ = 369614476. Its totient is φ = 105037920.

The previous prime is 210642041. The next prime is 210642059. The reversal of 210642052 is 250246012.

It can be written as a sum of positive squares in 2 ways, for example, as 143664196 + 66977856 = 11986^2 + 8184^2 .

It is not an unprimeable number, because it can be changed into a prime (210642059) 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, 69099 + ... + 72082.

Almost surely, 2^210642052 is an apocalyptic number.

It is an amenable number.

210642052 is a deficient number, since it is larger than the sum of its proper divisors (158972424).

210642052 is a wasteful number, since it uses less digits than its factorization.

210642052 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 141558 (or 141556 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 22.

The square root of 210642052 is about 14513.5127381348. The cubic root of 210642052 is about 594.9973419837.

Adding to 210642052 its reverse (250246012), we get a palindrome (460888064).

The spelling of 210642052 in words is "two hundred ten million, six hundred forty-two thousand, fifty-two".