1325445200 has 120 divisors (see below), whose sum is σ = 3281361408. Its totient is φ = 514275840.

The previous prime is 1325445197. The next prime is 1325445217. The reversal of 1325445200 is 25445231.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 1325445200.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2183297 + ... + 2183903.

Almost surely, 2^1325445200 is an apocalyptic number.

1325445200 is a gapful number since it is divisible by the number (10) 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 1325445200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1640680704).

1325445200 is an abundant number, since it is smaller than the sum of its proper divisors (1955916208).

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

1325445200 is a wasteful number, since it uses less digits than its factorization.

1325445200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 781 (or 770 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 26.

The square root of 1325445200 is about 36406.6642251113. The cubic root of 1325445200 is about 1098.4676183360.

The spelling of 1325445200 in words is "one billion, three hundred twenty-five million, four hundred forty-five thousand, two hundred".