1265824 has 24 divisors (see below), whose sum is σ = 2848608. Its totient is φ = 542400.

The previous prime is 1265813. The next prime is 1265827. The reversal of 1265824 is 4285621.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is a junction number, because it is equal to n+sod(n) for n = 1265792 and 1265801.

It is not an unprimeable number, because it can be changed into a prime (1265827) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2602 + ... + 3049.

It is an arithmetic number, because the mean of its divisors is an integer number (118692).

2^1265824 is an apocalyptic number.

1265824 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

1265824 is an abundant number, since it is smaller than the sum of its proper divisors (1582784).

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

1265824 is an equidigital number, since it uses as much as digits as its factorization.

1265824 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5668 (or 5660 counting only the distinct ones).

The product of its digits is 3840, while the sum is 28.

The square root of 1265824 is about 1125.0884409681. The cubic root of 1265824 is about 108.1743867631.

The spelling of 1265824 in words is "one million, two hundred sixty-five thousand, eight hundred twenty-four".