211680296 has 16 divisors (see below), whose sum is σ = 397057140. Its totient is φ = 105798400.

The previous prime is 211680283. The next prime is 211680361. The reversal of 211680296 is 692086112.

It can be written as a sum of positive squares in 2 ways, for example, as 196392196 + 15288100 = 14014^2 + 3910^2 .

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, 31646 + ... + 37746.

Almost surely, 2^211680296 is an apocalyptic number.

It is an amenable number.

211680296 is a deficient number, since it is larger than the sum of its proper divisors (185376844).

211680296 is a wasteful number, since it uses less digits than its factorization.

211680296 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10444 (or 10440 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 35.

The square root of 211680296 is about 14549.2369559369. The cubic root of 211680296 is about 595.9733108178.

The spelling of 211680296 in words is "two hundred eleven million, six hundred eighty thousand, two hundred ninety-six".