265123432 has 32 divisors (see below), whose sum is σ = 601542720. Its totient is φ = 106940160.

The previous prime is 265123429. The next prime is 265123451. The reversal of 265123432 is 234321562.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is a self number, because there is not a number n which added to its sum of digits gives 265123432.

It is an unprimeable number.

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, 138294 + ... + 140197.

It is an arithmetic number, because the mean of its divisors is an integer number (18798210).

Almost surely, 2^265123432 is an apocalyptic number.

It is an amenable number.

265123432 is an abundant number, since it is smaller than the sum of its proper divisors (336419288).

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

265123432 is a wasteful number, since it uses less digits than its factorization.

265123432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 278521 (or 278517 counting only the distinct ones).

The product of its digits is 8640, while the sum is 28.

The square root of 265123432 is about 16282.6113384801. The cubic root of 265123432 is about 642.4155395747.

Adding to 265123432 its reverse (234321562), we get a palindrome (499444994).

The spelling of 265123432 in words is "two hundred sixty-five million, one hundred twenty-three thousand, four hundred thirty-two".