268228239 has 16 divisors (see below), whose sum is σ = 360223200. Its totient is φ = 177531776.

The previous prime is 268228237. The next prime is 268228243. The reversal of 268228239 is 932822862.

It is a cyclic number.

It is not a de Polignac number, because 268228239 - 2¹ = 268228237 is a prime.

It is a super-2 number, since 2×268228239² = 143892776394082242, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 268228239.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (268228237) 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, 410437 + ... + 411089.

It is an arithmetic number, because the mean of its divisors is an integer number (22513950).

Almost surely, 2^268228239 is an apocalyptic number.

268228239 is a deficient number, since it is larger than the sum of its proper divisors (91994961).

268228239 is a wasteful number, since it uses less digits than its factorization.

268228239 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1434.

The product of its digits is 165888, while the sum is 42.

The square root of 268228239 is about 16377.6750181459. The cubic root of 268228239 is about 644.9135464920.

The spelling of 268228239 in words is "two hundred sixty-eight million, two hundred twenty-eight thousand, two hundred thirty-nine".