3581349321 has 16 divisors (see below), whose sum is σ = 5272001280. Its totient is φ = 2144362320.

The previous prime is 3581349313. The next prime is 3581349329. The reversal of 3581349321 is 1239431853.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (3581349313) and next prime (3581349329).

It is not a de Polignac number, because 3581349321 - 2³ = 3581349313 is a prime.

It is a super-2 number, since 2×3581349321² = 25652125918054322082, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 3581349321.

It is not an unprimeable number, because it can be changed into a prime (3581349329) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 651031 + ... + 656508.

It is an arithmetic number, because the mean of its divisors is an integer number (329500080).

Almost surely, 2^3581349321 is an apocalyptic number.

It is an amenable number.

3581349321 is a deficient number, since it is larger than the sum of its proper divisors (1690651959).

3581349321 is a wasteful number, since it uses less digits than its factorization.

3581349321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1307636.

The product of its digits is 77760, while the sum is 39.

The square root of 3581349321 is about 59844.3758510355. The cubic root of 3581349321 is about 1529.9675788764.

The spelling of 3581349321 in words is "three billion, five hundred eighty-one million, three hundred forty-nine thousand, three hundred twenty-one".