3260405000 has 40 divisors (see below), whose sum is σ = 7639140630. Its totient is φ = 1304160000.

The previous prime is 3260404991. The next prime is 3260405003. The reversal of 3260405000 is 5040623.

It can be written as a sum of positive squares in 5 ways, for example, as 183927844 + 3076477156 = 13562^2 + 55466^2 .

It is a tau number, because it is divible by the number of its divisors (40).

It is a Harshad number since it is a multiple of its sum of digits (20).

It is not an unprimeable number, because it can be changed into a prime (3260405003) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 321041 + ... + 331040.

Almost surely, 2^3260405000 is an apocalyptic number.

It is an amenable number.

3260405000 is an abundant number, since it is smaller than the sum of its proper divisors (4378735630).

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

3260405000 is an equidigital number, since it uses as much as digits as its factorization.

3260405000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 652107 (or 652088 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 20.

The square root of 3260405000 is about 57099.9562171461. The cubic root of 3260405000 is about 1482.8271077633.

Adding to 3260405000 its reverse (5040623), we get a palindrome (3265445623).

The spelling of 3260405000 in words is "three billion, two hundred sixty million, four hundred five thousand".