1265328 has 80 divisors (see below), whose sum is σ = 3794400. Its totient is φ = 403200.

The previous prime is 1265321. The next prime is 1265333. The reversal of 1265328 is 8235621.

1265328 is a `hidden beast` number, since 1 + 2 + 653 + 2 + 8 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (1265321) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12478 + ... + 12578.

It is an arithmetic number, because the mean of its divisors is an integer number (47430).

2^1265328 is an apocalyptic number.

1265328 is a gapful number since it is divisible by the number (18) 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 1265328, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1897200).

1265328 is an abundant number, since it is smaller than the sum of its proper divisors (2529072).

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

1265328 is a wasteful number, since it uses less digits than its factorization.

1265328 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 147 (or 135 counting only the distinct ones).

The product of its digits is 2880, while the sum is 27.

The square root of 1265328 is about 1124.8679922551. The cubic root of 1265328 is about 108.1602559136.

1265328 divided by its sum of digits (27) gives a palindrome (46864).

The spelling of 1265328 in words is "one million, two hundred sixty-five thousand, three hundred twenty-eight".