268426 has 4 divisors (see below), whose sum is σ = 402642. Its totient is φ = 134212.

The previous prime is 268403. The next prime is 268439. The reversal of 268426 is 624862.

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

It can be written as a sum of positive squares in only one way, i.e., 203401 + 65025 = 451^2 + 255^2 .

It is a junction number, because it is equal to n+sod(n) for n = 268394 and 268403.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 67105 + ... + 67108.

2²⁶⁸⁴²⁶ is an apocalyptic number.

268426 is a deficient number, since it is larger than the sum of its proper divisors (134216).

268426 is a wasteful number, since it uses less digits than its factorization.

268426 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 134215.

The product of its digits is 4608, while the sum is 28.

The square root of 268426 is about 518.0984462436. The cubic root of 268426 is about 64.5072002859.

The spelling of 268426 in words is "two hundred sixty-eight thousand, four hundred twenty-six".