1325648 has 20 divisors (see below), whose sum is σ = 2657940. Its totient is φ = 639744.

The previous prime is 1325633. The next prime is 1325657. The reversal of 1325648 is 8465231.

It can be written as a sum of positive squares in 2 ways, for example, as 795664 + 529984 = 892^2 + 728^2 .

It is a Harshad number since it is a multiple of its sum of digits (29).

It is a self number, because there is not a number n which added to its sum of digits gives 1325648.

It is a congruent number.

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, 965 + ... + 1892.

It is an arithmetic number, because the mean of its divisors is an integer number (132897).

2^1325648 is an apocalyptic number.

It is an amenable number.

1325648 is an abundant number, since it is smaller than the sum of its proper divisors (1332292).

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

1325648 is a wasteful number, since it uses less digits than its factorization.

1325648 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2894 (or 2888 counting only the distinct ones).

The product of its digits is 5760, while the sum is 29.

The square root of 1325648 is about 1151.3678821298. The cubic root of 1325648 is about 109.8523639229.

The spelling of 1325648 in words is "one million, three hundred twenty-five thousand, six hundred forty-eight".