268039 has 4 divisors (see below), whose sum is σ = 283824. Its totient is φ = 252256.

The previous prime is 268013. The next prime is 268043. The reversal of 268039 is 930862.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-268039 is a prime.

It is a Duffinian number.

268039 is a lucky number.

It is a junction number, because it is equal to n+sod(n) for n = 267998 and 268016.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (268049) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7867 + ... + 7900.

It is an arithmetic number, because the mean of its divisors is an integer number (70956).

2²⁶⁸⁰³⁹ is an apocalyptic number.

268039 is a deficient number, since it is larger than the sum of its proper divisors (15785).

268039 is a wasteful number, since it uses less digits than its factorization.

268039 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15784.

The product of its (nonzero) digits is 2592, while the sum is 28.

The square root of 268039 is about 517.7248303877. The cubic root of 268039 is about 64.4761845454.

The spelling of 268039 in words is "two hundred sixty-eight thousand, thirty-nine".