268634 has 8 divisors (see below), whose sum is σ = 426708. Its totient is φ = 126400.

The previous prime is 268613. The next prime is 268637. The reversal of 268634 is 436862.

It can be written as a sum of positive squares in 2 ways, for example, as 253009 + 15625 = 503^2 + 125^2 .

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

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 268597 and 268606.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (268637) 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, 3917 + ... + 3984.

2²⁶⁸⁶³⁴ is an apocalyptic number.

268634 is a deficient number, since it is larger than the sum of its proper divisors (158074).

268634 is a wasteful number, since it uses less digits than its factorization.

268634 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7920.

The product of its digits is 6912, while the sum is 29.

The square root of 268634 is about 518.2991414232. The cubic root of 268634 is about 64.5238579289.

The spelling of 268634 in words is "two hundred sixty-eight thousand, six hundred thirty-four".