265335920 has 20 divisors (see below), whose sum is σ = 616906200. Its totient is φ = 106134336.

The previous prime is 265335907. The next prime is 265335923. The reversal of 265335920 is 29533562.

It is a happy number.

265335920 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (20).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (265335923) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1658270 + ... + 1658429.

It is an arithmetic number, because the mean of its divisors is an integer number (30845310).

Almost surely, 2^265335920 is an apocalyptic number.

265335920 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

265335920 is an abundant number, since it is smaller than the sum of its proper divisors (351570280).

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

265335920 is a wasteful number, since it uses less digits than its factorization.

265335920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3316712 (or 3316706 counting only the distinct ones).

The product of its (nonzero) digits is 48600, while the sum is 35.

The square root of 265335920 is about 16289.1350292150. The cubic root of 265335920 is about 642.5871189532.

The spelling of 265335920 in words is "two hundred sixty-five million, three hundred thirty-five thousand, nine hundred twenty".