210020430 has 32 divisors (see below), whose sum is σ = 504530208. Its totient is φ = 55952000.

The previous prime is 210020401. The next prime is 210020441. The reversal of 210020430 is 34020012.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 36340 + ... + 41720.

It is an arithmetic number, because the mean of its divisors is an integer number (15766569).

Almost surely, 2^210020430 is an apocalyptic number.

210020430 is an abundant number, since it is smaller than the sum of its proper divisors (294509778).

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

210020430 is a wasteful number, since it uses less digits than its factorization.

210020430 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6692.

The product of its (nonzero) digits is 48, while the sum is 12.

The square root of 210020430 is about 14492.0816310149. The cubic root of 210020430 is about 594.4114699410.

Adding to 210020430 its reverse (34020012), we get a palindrome (244040442).

The spelling of 210020430 in words is "two hundred ten million, twenty thousand, four hundred thirty".