268261956 has 30 divisors (see below), whose sum is σ = 701290590. Its totient is φ = 89420544.

The previous prime is 268261943. The next prime is 268261963. The reversal of 268261956 is 659162862.

268261956 is a `hidden beast` number, since 26 + 8 + 2 + 619 + 5 + 6 = 666.

It can be written as a sum of positive squares in only one way, i.e., 201185856 + 67076100 = 14184^2 + 8190^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 413661 + ... + 414308.

It is an arithmetic number, because the mean of its divisors is an integer number (23376353).

Almost surely, 2^268261956 is an apocalyptic number.

It is an amenable number.

268261956 is an abundant number, since it is smaller than the sum of its proper divisors (433028634).

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

268261956 is a wasteful number, since it uses less digits than its factorization.

268261956 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 827985 (or 827974 counting only the distinct ones).

The product of its digits is 311040, while the sum is 45.

The square root of 268261956 is about 16378.7043443613. The cubic root of 268261956 is about 644.9405678068.

It can be divided in two parts, 26826 and 1956, that added together give a palindrome (28782).

The spelling of 268261956 in words is "two hundred sixty-eight million, two hundred sixty-one thousand, nine hundred fifty-six".