1325440368 has 160 divisors (see below), whose sum is σ = 4376307200. Its totient is φ = 376233984.

The previous prime is 1325440349. The next prime is 1325440379. The reversal of 1325440368 is 8630445231.

1325440368 is a `hidden beast` number, since 1 + 3 + 254 + 40 + 368 = 666.

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

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 491568 + ... + 494256.

It is an arithmetic number, because the mean of its divisors is an integer number (27351920).

Almost surely, 2^1325440368 is an apocalyptic number.

1325440368 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 1325440368, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2188153600).

1325440368 is an abundant number, since it is smaller than the sum of its proper divisors (3050866832).

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

1325440368 is a wasteful number, since it uses less digits than its factorization.

1325440368 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2876 (or 2864 counting only the distinct ones).

The product of its (nonzero) digits is 69120, while the sum is 36.

The square root of 1325440368 is about 36406.5978635741. The cubic root of 1325440368 is about 1098.4662834884.

Adding to 1325440368 its reverse (8630445231), we get a palindrome (9955885599).

The spelling of 1325440368 in words is "one billion, three hundred twenty-five million, four hundred forty thousand, three hundred sixty-eight".