265481480 has 64 divisors (see below), whose sum is σ = 654350400. Its totient is φ = 96136960.

The previous prime is 265481467. The next prime is 265481539. The reversal of 265481480 is 84184562.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 117239 + ... + 119481.

It is an arithmetic number, because the mean of its divisors is an integer number (10224225).

Almost surely, 2^265481480 is an apocalyptic number.

265481480 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 265481480, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (327175200).

265481480 is an abundant number, since it is smaller than the sum of its proper divisors (388868920).

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

265481480 is a wasteful number, since it uses less digits than its factorization.

265481480 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2534 (or 2530 counting only the distinct ones).

The product of its (nonzero) digits is 61440, while the sum is 38.

The square root of 265481480 is about 16293.6024254920. The cubic root of 265481480 is about 642.7046025846.

The spelling of 265481480 in words is "two hundred sixty-five million, four hundred eighty-one thousand, four hundred eighty".