726135210 has 48 divisors (see below), whose sum is σ = 1907437896. Its totient is φ = 191637504.

The previous prime is 726135181. The next prime is 726135251. The reversal of 726135210 is 12531627.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 579894561 + 146240649 = 24081^2 + 12093^2 .

It is an unprimeable number.

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 23 ways as a sum of consecutive naturals, for example, 32859 + ... + 50318.

Almost surely, 2^726135210 is an apocalyptic number.

726135210 is an abundant number, since it is smaller than the sum of its proper divisors (1181302686).

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

726135210 is a wasteful number, since it uses less digits than its factorization.

726135210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 83287 (or 83284 counting only the distinct ones).

The product of its (nonzero) digits is 2520, while the sum is 27.

The square root of 726135210 is about 26946.8961106841. The cubic root of 726135210 is about 898.8195263978.

Adding to 726135210 its reverse (12531627), we get a palindrome (738666837).

The spelling of 726135210 in words is "seven hundred twenty-six million, one hundred thirty-five thousand, two hundred ten".