265304540 has 24 divisors (see below), whose sum is σ = 581364000. Its totient is φ = 101507648.

The previous prime is 265304537. The next prime is 265304549. The reversal of 265304540 is 45403562.

265304540 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×265304540² = 140772997889223200, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (265304549) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 287915 + ... + 288834.

It is an arithmetic number, because the mean of its divisors is an integer number (24223500).

Almost surely, 2^265304540 is an apocalyptic number.

265304540 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

265304540 is an abundant number, since it is smaller than the sum of its proper divisors (316059460).

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

265304540 is a wasteful number, since it uses less digits than its factorization.

265304540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 576781 (or 576779 counting only the distinct ones).

The product of its (nonzero) digits is 14400, while the sum is 29.

The square root of 265304540 is about 16288.1717820018. The cubic root of 265304540 is about 642.5617860611.

The spelling of 265304540 in words is "two hundred sixty-five million, three hundred four thousand, five hundred forty".