210210772 has 12 divisors (see below), whose sum is σ = 376841556. Its totient is φ = 102541760.

The previous prime is 210210739. The next prime is 210210787. The reversal of 210210772 is 277012012.

It can be written as a sum of positive squares in 2 ways, for example, as 54110736 + 156100036 = 7356^2 + 12494^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 640723 + ... + 641050.

It is an arithmetic number, because the mean of its divisors is an integer number (31403463).

Almost surely, 2^210210772 is an apocalyptic number.

It is an amenable number.

210210772 is a deficient number, since it is larger than the sum of its proper divisors (166630784).

210210772 is a wasteful number, since it uses less digits than its factorization.

210210772 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1281818 (or 1281816 counting only the distinct ones).

The product of its (nonzero) digits is 392, while the sum is 22.

The square root of 210210772 is about 14498.6472472434. The cubic root of 210210772 is about 594.5909878814.

Adding to 210210772 its reverse (277012012), we get a palindrome (487222784).

The spelling of 210210772 in words is "two hundred ten million, two hundred ten thousand, seven hundred seventy-two".