268249439 has 4 divisors (see below), whose sum is σ = 268481256. Its totient is φ = 268017624.

The previous prime is 268249433. The next prime is 268249463. The reversal of 268249439 is 934942862.

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

It is a cyclic number.

It is not a de Polignac number, because 268249439 - 2²⁰ = 267200863 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 268249393 and 268249402.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (268249433) 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, 114164 + ... + 116489.

It is an arithmetic number, because the mean of its divisors is an integer number (67120314).

Almost surely, 2^268249439 is an apocalyptic number.

268249439 is a deficient number, since it is larger than the sum of its proper divisors (231817).

268249439 is a wasteful number, since it uses less digits than its factorization.

268249439 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 231816.

The product of its digits is 746496, while the sum is 47.

The square root of 268249439 is about 16378.3222278718. The cubic root of 268249439 is about 644.9305367576.

It can be divided in two parts, 26824 and 9439, that added together give a palindrome (36263).

The spelling of 268249439 in words is "two hundred sixty-eight million, two hundred forty-nine thousand, four hundred thirty-nine".