265440234 has 16 divisors (see below), whose sum is σ = 533633472. Its totient is φ = 88021248.

The previous prime is 265440223. The next prime is 265440239. The reversal of 265440234 is 432044562.

It is not an unprimeable number, because it can be changed into a prime (265440239) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 113454 + ... + 115769.

It is an arithmetic number, because the mean of its divisors is an integer number (33352092).

Almost surely, 2^265440234 is an apocalyptic number.

265440234 is an abundant number, since it is smaller than the sum of its proper divisors (268193238).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

265440234 is a wasteful number, since it uses less digits than its factorization.

265440234 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 229421.

The product of its (nonzero) digits is 23040, while the sum is 30.

The square root of 265440234 is about 16292.3366648250. The cubic root of 265440234 is about 642.6713166883.

Adding to 265440234 its reverse (432044562), we get a palindrome (697484796).

The spelling of 265440234 in words is "two hundred sixty-five million, four hundred forty thousand, two hundred thirty-four".