1325413044 has 120 divisors (see below), whose sum is σ = 3535059528. Its totient is φ = 432967680.

The previous prime is 1325413043. The next prime is 1325413049. The reversal of 1325413044 is 4403145231.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 22924944 + 1302488100 = 4788^2 + 36090^2 .

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

It is a junction number, because it is equal to n+sod(n) for n = 1325412999 and 1325413017.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1325413043) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 5688352 + ... + 5688584.

Almost surely, 2^1325413044 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 1325413044, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1767529764).

1325413044 is an abundant number, since it is smaller than the sum of its proper divisors (2209646484).

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

1325413044 is a wasteful number, since it uses less digits than its factorization.

1325413044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 527 (or 516 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 27.

The square root of 1325413044 is about 36406.2225999897. Note that the first 3 decimals coincide. The cubic root of 1325413044 is about 1098.4587351294.

Adding to 1325413044 its reverse (4403145231), we get a palindrome (5728558275).

The spelling of 1325413044 in words is "one billion, three hundred twenty-five million, four hundred thirteen thousand, forty-four".