3260405040 has 160 divisors (see below), whose sum is σ = 10679316480. Its totient is φ = 821517312.

The previous prime is 3260405033. The next prime is 3260405063. The reversal of 3260405040 is 405040623.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a self number, because there is not a number n which added to its sum of digits gives 3260405040.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 322137 + ... + 332103.

It is an arithmetic number, because the mean of its divisors is an integer number (66745728).

Almost surely, 2^3260405040 is an apocalyptic number.

3260405040 is a gapful number since it is divisible by the number (30) 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 3260405040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5339658240).

3260405040 is an abundant number, since it is smaller than the sum of its proper divisors (7418911440).

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

3260405040 is a wasteful number, since it uses less digits than its factorization.

3260405040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10059 (or 10053 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 24.

The square root of 3260405040 is about 57099.9565674091. The cubic root of 3260405040 is about 1482.8271138273.

Adding to 3260405040 its reverse (405040623), we get a palindrome (3665445663).

The spelling of 3260405040 in words is "three billion, two hundred sixty million, four hundred five thousand, forty".