265278960 has 60 divisors (see below), whose sum is σ = 890897592. Its totient is φ = 70740864.

The previous prime is 265278943. The next prime is 265278967. The reversal of 265278960 is 69872562.

It is a tau number, because it is divible by the number of its divisors (60).

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (265278967) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 183502 + ... + 184941.

Almost surely, 2^265278960 is an apocalyptic number.

265278960 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

265278960 is an abundant number, since it is smaller than the sum of its proper divisors (625618632).

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

265278960 is a wasteful number, since it uses less digits than its factorization.

265278960 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 368462 (or 368453 counting only the distinct ones).

The product of its (nonzero) digits is 362880, while the sum is 45.

The square root of 265278960 is about 16287.3865306869. The cubic root of 265278960 is about 642.5411339974.

The spelling of 265278960 in words is "two hundred sixty-five million, two hundred seventy-eight thousand, nine hundred sixty".