1326052520 has 32 divisors (see below), whose sum is σ = 3213128520. Its totient is φ = 489619200.

The previous prime is 1326052477. The next prime is 1326052549. The reversal of 1326052520 is 252506231.

It can be written as a sum of positive squares in 4 ways, for example, as 684240964 + 641811556 = 26158^2 + 25334^2 .

It is a Harshad number since it is a multiple of its sum of digits (26).

It is a self number, because there is not a number n which added to its sum of digits gives 1326052520.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1274531 + ... + 1275570.

Almost surely, 2^1326052520 is an apocalyptic number.

1326052520 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1326052520 is an abundant number, since it is smaller than the sum of its proper divisors (1887076000).

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

1326052520 is a wasteful number, since it uses less digits than its factorization.

1326052520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2550125 (or 2550121 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 26.

The square root of 1326052520 is about 36415.0040505284. The cubic root of 1326052520 is about 1098.6353656177.

Adding to 1326052520 its reverse (252506231), we get a palindrome (1578558751).

The spelling of 1326052520 in words is "one billion, three hundred twenty-six million, fifty-two thousand, five hundred twenty".