210020030 has 32 divisors (see below), whose sum is σ = 426630240. Its totient is φ = 73736320.

The previous prime is 210020003. The next prime is 210020039. The reversal of 210020030 is 30020012.

210020030 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (210020039) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 29729 + ... + 36108.

It is an arithmetic number, because the mean of its divisors is an integer number (13332195).

Almost surely, 2^210020030 is an apocalyptic number.

210020030 is an abundant number, since it is smaller than the sum of its proper divisors (216610210).

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

210020030 is a wasteful number, since it uses less digits than its factorization.

210020030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65884.

The product of its (nonzero) digits is 12, while the sum is 8.

The square root of 210020030 is about 14492.0678303684. The cubic root of 210020030 is about 594.4110925734.

Adding to 210020030 its reverse (30020012), we get a palindrome (240040042).

The spelling of 210020030 in words is "two hundred ten million, twenty thousand, thirty".