3580725840 has 80 divisors (see below), whose sum is σ = 11144661696. Its totient is φ = 951040000.

The previous prime is 3580725839. The next prime is 3580725851. The reversal of 3580725840 is 485270853.

It is a tau number, because it is divible by the number of its divisors (80).

It is a junction number, because it is equal to n+sod(n) for n = 3580725792 and 3580725801.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 30520 + ... + 89960.

Almost surely, 2^3580725840 is an apocalyptic number.

3580725840 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 3580725840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5572330848).

3580725840 is an abundant number, since it is smaller than the sum of its proper divisors (7563935856).

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

3580725840 is a wasteful number, since it uses less digits than its factorization.

3580725840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 59708 (or 59702 counting only the distinct ones).

The product of its (nonzero) digits is 268800, while the sum is 42.

The square root of 3580725840 is about 59839.1664380446. The cubic root of 3580725840 is about 1529.8787891502.

The spelling of 3580725840 in words is "three billion, five hundred eighty million, seven hundred twenty-five thousand, eight hundred forty".