210023630 has 32 divisors (see below), whose sum is σ = 387120384. Its totient is φ = 82008576.

The previous prime is 210023629. The next prime is 210023669. The reversal of 210023630 is 36320012.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 210023599 and 210023608.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 117302 + ... + 119078.

It is an arithmetic number, because the mean of its divisors is an integer number (12097512).

Almost surely, 2^210023630 is an apocalyptic number.

210023630 is a deficient number, since it is larger than the sum of its proper divisors (177096754).

210023630 is a wasteful number, since it uses less digits than its factorization.

210023630 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2060.

The product of its (nonzero) digits is 216, while the sum is 17.

The square root of 210023630 is about 14492.1920357136. The cubic root of 210023630 is about 594.4144888649.

Adding to 210023630 its reverse (36320012), we get a palindrome (246343642).

The spelling of 210023630 in words is "two hundred ten million, twenty-three thousand, six hundred thirty".