1265336352 has 288 divisors, whose sum is σ = 4443828480. Its totient is φ = 333527040.

The previous prime is 1265336341. The next prime is 1265336389. The reversal of 1265336352 is 2536335621.

1265336352 is a `hidden beast` number, since 12 + 6 + 5 + 3 + 3 + 635 + 2 = 666.

It is a tau number, because it is divible by the number of its divisors (288).

It is a Harshad number since it is a multiple of its sum of digits (36).

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 47 ways as a sum of consecutive naturals, for example, 1344202 + ... + 1345142.

It is an arithmetic number, because the mean of its divisors is an integer number (15429960).

Almost surely, 2^1265336352 is an apocalyptic number.

1265336352 is a gapful number since it is divisible by the number (12) 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 1265336352, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2221914240).

1265336352 is an abundant number, since it is smaller than the sum of its proper divisors (3178492128).

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

1265336352 is a wasteful number, since it uses less digits than its factorization.

1265336352 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1016 (or 1005 counting only the distinct ones).

The product of its digits is 97200, while the sum is 36.

The square root of 1265336352 is about 35571.5666227958. The cubic root of 1265336352 is about 1081.6049388947.

The spelling of 1265336352 in words is "one billion, two hundred sixty-five million, three hundred thirty-six thousand, three hundred fifty-two".