265426 has 8 divisors (see below), whose sum is σ = 455040. Its totient is φ = 113748.

The previous prime is 265423. The next prime is 265427. The reversal of 265426 is 624562.

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

It is a super-2 number, since 2×265426² = 140901922952, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 265426.

It is not an unprimeable number, because it can be changed into a prime (265423) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9466 + ... + 9493.

It is an arithmetic number, because the mean of its divisors is an integer number (56880).

2²⁶⁵⁴²⁶ is an apocalyptic number.

265426 is a deficient number, since it is larger than the sum of its proper divisors (189614).

265426 is a wasteful number, since it uses less digits than its factorization.

265426 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18968.

The product of its digits is 2880, while the sum is 25.

The square root of 265426 is about 515.1951086724. The cubic root of 265426 is about 64.2659828921.

Adding to 265426 its reverse (624562), we get a palindrome (889988).

The spelling of 265426 in words is "two hundred sixty-five thousand, four hundred twenty-six".