268672556 has 24 divisors (see below), whose sum is σ = 500638320. Its totient is φ = 125722112.

The previous prime is 268672553. The next prime is 268672561. The reversal of 268672556 is 655276862.

It is a self number, because there is not a number n which added to its sum of digits gives 268672556.

It is not an unprimeable number, because it can be changed into a prime (268672553) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1136 + ... + 23208.

It is an arithmetic number, because the mean of its divisors is an integer number (20859930).

Almost surely, 2^268672556 is an apocalyptic number.

It is an amenable number.

268672556 is a deficient number, since it is larger than the sum of its proper divisors (231965764).

268672556 is a wasteful number, since it uses less digits than its factorization.

268672556 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22273 (or 22271 counting only the distinct ones).

The product of its digits is 1209600, while the sum is 47.

The square root of 268672556 is about 16391.2341207122. The cubic root of 268672556 is about 645.2694473456.

The spelling of 268672556 in words is "two hundred sixty-eight million, six hundred seventy-two thousand, five hundred fifty-six".