268433409 has 8 divisors (see below), whose sum is σ = 367584640. Its totient is φ = 174118896.

The previous prime is 268433401. The next prime is 268433441. The reversal of 268433409 is 904334862.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 268433409 - 2³ = 268433401 is a prime.

It is a super-2 number, since 2×268433409² = 144112990134722562, which contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (268433401) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1209049 + ... + 1209270.

It is an arithmetic number, because the mean of its divisors is an integer number (45948080).

Almost surely, 2^268433409 is an apocalyptic number.

It is an amenable number.

268433409 is a deficient number, since it is larger than the sum of its proper divisors (99151231).

268433409 is a wasteful number, since it uses less digits than its factorization.

268433409 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2418359.

The product of its (nonzero) digits is 124416, while the sum is 39.

The square root of 268433409 is about 16383.9375303985. The cubic root of 268433409 is about 645.0779378208.

The spelling of 268433409 in words is "two hundred sixty-eight million, four hundred thirty-three thousand, four hundred nine".