1325733620 has 12 divisors (see below), whose sum is σ = 2784040644. Its totient is φ = 530293440.

The previous prime is 1325733601. The next prime is 1325733641. The reversal of 1325733620 is 263375231.

It can be written as a sum of positive squares in 2 ways, for example, as 157051024 + 1168682596 = 12532^2 + 34186^2 .

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, 33143321 + ... + 33143360.

It is an arithmetic number, because the mean of its divisors is an integer number (232003387).

Almost surely, 2^1325733620 is an apocalyptic number.

1325733620 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1325733620 is an abundant number, since it is smaller than the sum of its proper divisors (1458307024).

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

1325733620 is a wasteful number, since it uses less digits than its factorization.

1325733620 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66286690 (or 66286688 counting only the distinct ones).

The product of its (nonzero) digits is 22680, while the sum is 32.

The square root of 1325733620 is about 36410.6250976278. The cubic root of 1325733620 is about 1098.5472889385.

The spelling of 1325733620 in words is "one billion, three hundred twenty-five million, seven hundred thirty-three thousand, six hundred twenty".