265340992 has 56 divisors (see below), whose sum is σ = 606226880. Its totient is φ = 112872960.

The previous prime is 265340983. The next prime is 265341001. The reversal of 265340992 is 299043562.

It is an interprime number because it is at equal distance from previous prime (265340983) and next prime (265341001).

It is a tau number, because it is divible by the number of its divisors (56).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 60142 + ... + 64402.

It is an arithmetic number, because the mean of its divisors is an integer number (10825480).

Almost surely, 2^265340992 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 265340992, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (303113440).

265340992 is an abundant number, since it is smaller than the sum of its proper divisors (340885888).

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

265340992 is a wasteful number, since it uses less digits than its factorization.

265340992 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4419 (or 4409 counting only the distinct ones).

The product of its (nonzero) digits is 116640, while the sum is 40.

The square root of 265340992 is about 16289.2907150680. The cubic root of 265340992 is about 642.5912133619.

The spelling of 265340992 in words is "two hundred sixty-five million, three hundred forty thousand, nine hundred ninety-two".