3581327540 has 96 divisors (see below), whose sum is σ = 8756966400. Its totient is φ = 1204968960.

The previous prime is 3581327531. The next prime is 3581327597. The reversal of 3581327540 is 457231853.

It is a junction number, because it is equal to n+sod(n) for n = 3581327494 and 3581327503.

It is a congruent number.

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, 2000966 + ... + 2002754.

It is an arithmetic number, because the mean of its divisors is an integer number (91218400).

Almost surely, 2^3581327540 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3581327540, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4378483200).

3581327540 is an abundant number, since it is smaller than the sum of its proper divisors (5175638860).

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

3581327540 is a wasteful number, since it uses less digits than its factorization.

3581327540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2065 (or 2063 counting only the distinct ones).

The product of its (nonzero) digits is 100800, while the sum is 38.

The square root of 3581327540 is about 59844.1938704165. The cubic root of 3581327540 is about 1529.9644772250.

The spelling of 3581327540 in words is "three billion, five hundred eighty-one million, three hundred twenty-seven thousand, five hundred forty".