265031872 has 112 divisors (see below), whose sum is σ = 630862848. Its totient is φ = 108103680.

The previous prime is 265031869. The next prime is 265031881. The reversal of 265031872 is 278130562.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (112).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 863143 + ... + 863449.

It is an arithmetic number, because the mean of its divisors is an integer number (5632704).

Almost surely, 2^265031872 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 265031872, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (315431424).

265031872 is an abundant number, since it is smaller than the sum of its proper divisors (365830976).

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

265031872 is a wasteful number, since it uses less digits than its factorization.

265031872 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 414 (or 404 counting only the distinct ones).

The product of its (nonzero) digits is 20160, while the sum is 34.

The square root of 265031872 is about 16279.7995073649. The cubic root of 265031872 is about 642.3415786291.

The spelling of 265031872 in words is "two hundred sixty-five million, thirty-one thousand, eight hundred seventy-two".