1325246464 has 48 divisors (see below), whose sum is σ = 2721618900. Its totient is φ = 644677632.

The previous prime is 1325246443. The next prime is 1325246471. The reversal of 1325246464 is 4646425231.

It can be written as a sum of positive squares in 2 ways, for example, as 1296000000 + 29246464 = 36000^2 + 5408^2 .

It is a Harshad number since it is a multiple of its sum of digits (37).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 67032 + ... + 84520.

Almost surely, 2^1325246464 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 1325246464, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1360809450).

1325246464 is an abundant number, since it is smaller than the sum of its proper divisors (1396372436).

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

1325246464 is an equidigital number, since it uses as much as digits as its factorization.

1325246464 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17548 (or 17528 counting only the distinct ones).

The product of its digits is 138240, while the sum is 37.

The square root of 1325246464 is about 36403.9347323885. The cubic root of 1325246464 is about 1098.4127145265.

The spelling of 1325246464 in words is "one billion, three hundred twenty-five million, two hundred forty-six thousand, four hundred sixty-four".