268621017 has 16 divisors (see below), whose sum is σ = 413086080. Its totient is φ = 152088192.

The previous prime is 268621007. The next prime is 268621019. The reversal of 268621017 is 710126862.

It is not a de Polignac number, because 268621017 - 2¹¹ = 268618969 is a prime.

It is a super-2 number, since 2×268621017² = 144314501548228578, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (268621019) 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 15 ways as a sum of consecutive naturals, for example, 56388 + ... + 60965.

It is an arithmetic number, because the mean of its divisors is an integer number (25817880).

Almost surely, 2^268621017 is an apocalyptic number.

It is an amenable number.

268621017 is a deficient number, since it is larger than the sum of its proper divisors (144465063).

268621017 is a wasteful number, since it uses less digits than its factorization.

268621017 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 117472.

The product of its (nonzero) digits is 8064, while the sum is 33.

The square root of 268621017 is about 16389.6618940111. The cubic root of 268621017 is about 645.2281843930.

Adding to 268621017 its reverse (710126862), we get a palindrome (978747879).

The spelling of 268621017 in words is "two hundred sixty-eight million, six hundred twenty-one thousand, seventeen".