211140304 has 10 divisors (see below), whose sum is σ = 409084370. Its totient is φ = 105570144.

The previous prime is 211140233. The next prime is 211140343. The reversal of 211140304 is 403041112.

It can be written as a sum of positive squares in only one way, i.e., 124277904 + 86862400 = 11148^2 + 9320^2 .

It is a Harshad number since it is a multiple of its sum of digits (16), and also a Moran number because the ratio is a prime number: 13196269 = 211140304 / (2 + 1 + 1 + 1 + 4 + 0 + 3 + 0 + 4).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6598119 + ... + 6598150.

It is an arithmetic number, because the mean of its divisors is an integer number (40908437).

Almost surely, 2^211140304 is an apocalyptic number.

It is an amenable number.

211140304 is a deficient number, since it is larger than the sum of its proper divisors (197944066).

211140304 is a wasteful number, since it uses less digits than its factorization.

211140304 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13196277 (or 13196271 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 16.

The square root of 211140304 is about 14530.6677066128. The cubic root of 211140304 is about 595.4661074749.

Adding to 211140304 its reverse (403041112), we get a palindrome (614181416).

The spelling of 211140304 in words is "two hundred eleven million, one hundred forty thousand, three hundred four".