268721206 has 32 divisors (see below), whose sum is σ = 452664576. Its totient is φ = 118800000.

The previous prime is 268721153. The next prime is 268721207. The reversal of 268721206 is 602127862.

268721206 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×268721206² = 144422173108188872, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (268721207) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 79756 + ... + 83056.

It is an arithmetic number, because the mean of its divisors is an integer number (14145768).

Almost surely, 2^268721206 is an apocalyptic number.

268721206 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

268721206 is a deficient number, since it is larger than the sum of its proper divisors (183943370).

268721206 is a wasteful number, since it uses less digits than its factorization.

268721206 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3448.

The product of its (nonzero) digits is 16128, while the sum is 34.

The square root of 268721206 is about 16392.7180784640. The cubic root of 268721206 is about 645.3083924770.

The spelling of 268721206 in words is "two hundred sixty-eight million, seven hundred twenty-one thousand, two hundred six".