211676768 has 24 divisors (see below), whose sum is σ = 426905640. Its totient is φ = 103256320.

The previous prime is 211676761. The next prime is 211676791. The reversal of 211676768 is 867676112.

It is a super-2 number, since 2×211676768² = 89614108221851648, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (211676761) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 79358 + ... + 81981.

It is an arithmetic number, because the mean of its divisors is an integer number (17787735).

Almost surely, 2^211676768 is an apocalyptic number.

It is an amenable number.

211676768 is an abundant number, since it is smaller than the sum of its proper divisors (215228872).

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

211676768 is a wasteful number, since it uses less digits than its factorization.

211676768 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 161390 (or 161382 counting only the distinct ones).

The product of its digits is 169344, while the sum is 44.

The square root of 211676768 is about 14549.1157119600. The cubic root of 211676768 is about 595.9699998412.

The spelling of 211676768 in words is "two hundred eleven million, six hundred seventy-six thousand, seven hundred sixty-eight".