268021652 has 12 divisors (see below), whose sum is σ = 471420180. Its totient is φ = 133330176.

The previous prime is 268021639. The next prime is 268021669. The reversal of 268021652 is 256120862.

It can be written as a sum of positive squares in 2 ways, for example, as 151683856 + 116337796 = 12316^2 + 10786^2 .

It is a super-3 number, since 3×268021652³ (a number of 26 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 169277 + ... + 170852.

It is an arithmetic number, because the mean of its divisors is an integer number (39285015).

Almost surely, 2^268021652 is an apocalyptic number.

It is an amenable number.

268021652 is a deficient number, since it is larger than the sum of its proper divisors (203398528).

268021652 is a wasteful number, since it uses less digits than its factorization.

268021652 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 340330 (or 340328 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 32.

The square root of 268021652 is about 16371.3668335909. The cubic root of 268021652 is about 644.7479350780.

The spelling of 268021652 in words is "two hundred sixty-eight million, twenty-one thousand, six hundred fifty-two".