268409439 has 12 divisors (see below), whose sum is σ = 400209472. Its totient is φ = 173167200.

The previous prime is 268409431. The next prime is 268409489. The reversal of 268409439 is 934904862.

It is not a de Polignac number, because 268409439 - 2³ = 268409431 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 268409394 and 268409403.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (268409431) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 480742 + ... + 481299.

Almost surely, 2^268409439 is an apocalyptic number.

268409439 is a deficient number, since it is larger than the sum of its proper divisors (131800033).

268409439 is a wasteful number, since it uses less digits than its factorization.

268409439 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 962078 (or 962075 counting only the distinct ones).

The product of its (nonzero) digits is 373248, while the sum is 45.

The square root of 268409439 is about 16383.2060049308. The cubic root of 268409439 is about 645.0587363132.

It can be divided in two parts, 2 and 68409439, that added together give a square (68409441 = 8271²).

The spelling of 268409439 in words is "two hundred sixty-eight million, four hundred nine thousand, four hundred thirty-nine".