265944480 has 48 divisors (see below), whose sum is σ = 837726624. Its totient is φ = 70918400.

The previous prime is 265944473. The next prime is 265944517. The reversal of 265944480 is 84449562.

It is a tau number, because it is divible by the number of its divisors (48).

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, 276546 + ... + 277505.

It is an arithmetic number, because the mean of its divisors is an integer number (17452638).

Almost surely, 2^265944480 is an apocalyptic number.

265944480 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

265944480 is an abundant number, since it is smaller than the sum of its proper divisors (571782144).

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

265944480 is a wasteful number, since it uses less digits than its factorization.

265944480 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 554069 (or 554061 counting only the distinct ones).

The product of its (nonzero) digits is 276480, while the sum is 42.

The square root of 265944480 is about 16307.8042666694. The cubic root of 265944480 is about 643.0780114436.

The spelling of 265944480 in words is "two hundred sixty-five million, nine hundred forty-four thousand, four hundred eighty".