265742 has 16 divisors (see below), whose sum is σ = 427680. Its totient is φ = 123552.

The previous prime is 265739. The next prime is 265747. The reversal of 265742 is 247562.

It is a d-powerful number, because it can be written as 2³ + 6⁶ + 7⁶ + 5⁵ + 4⁸ + 2¹⁵ .

It is a plaindrome in base 9.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (265747) 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 7 ways as a sum of consecutive naturals, for example, 2384 + ... + 2492.

It is an arithmetic number, because the mean of its divisors is an integer number (26730).

2²⁶⁵⁷⁴² is an apocalyptic number.

265742 is a deficient number, since it is larger than the sum of its proper divisors (161938).

265742 is a wasteful number, since it uses less digits than its factorization.

265742 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 187.

The product of its digits is 3360, while the sum is 26.

The square root of 265742 is about 515.5016973784. The cubic root of 265742 is about 64.2914764970.

The spelling of 265742 in words is "two hundred sixty-five thousand, seven hundred forty-two".