210740931930 has 32 divisors (see below), whose sum is σ = 518114294208. Its totient is φ = 54826908800.

The previous prime is 210740931883. The next prime is 210740931937. The reversal of 210740931930 is 39139047012.

It is not an unprimeable number, because it can be changed into a prime (210740931937) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 85665816 + ... + 85668275.

It is an arithmetic number, because the mean of its divisors is an integer number (16191071694).

Almost surely, 2^210740931930 is an apocalyptic number.

210740931930 is an abundant number, since it is smaller than the sum of its proper divisors (307373362278).

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

210740931930 is a wasteful number, since it uses less digits than its factorization.

210740931930 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 171334142.

The product of its (nonzero) digits is 40824, while the sum is 39.

Adding to 210740931930 its reverse (39139047012), we get a palindrome (249879978942).

The spelling of 210740931930 in words is "two hundred ten billion, seven hundred forty million, nine hundred thirty-one thousand, nine hundred thirty".