265473728 has 56 divisors (see below), whose sum is σ = 592031328. Its totient is φ = 117190656.

The previous prime is 265473713. The next prime is 265473731. The reversal of 265473728 is 827374562.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12200 + ... + 26072.

It is an arithmetic number, because the mean of its divisors is an integer number (10571988).

Almost surely, 2^265473728 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 265473728, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (296015664).

265473728 is an abundant number, since it is smaller than the sum of its proper divisors (326557600).

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

265473728 is a wasteful number, since it uses less digits than its factorization.

265473728 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13921 (or 13911 counting only the distinct ones).

The product of its digits is 564480, while the sum is 44.

The square root of 265473728 is about 16293.3645389772. The cubic root of 265473728 is about 642.6983469133.

The spelling of 265473728 in words is "two hundred sixty-five million, four hundred seventy-three thousand, seven hundred twenty-eight".