3549959221 has 8 divisors (see below), whose sum is σ = 3741724800. Its totient is φ = 3358686240.

The previous prime is 3549959167. The next prime is 3549959269. The reversal of 3549959221 is 1229599453.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a de Polignac number, because none of the positive numbers 2^k-3549959221 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3549959291) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 108301 + ... + 137218.

It is an arithmetic number, because the mean of its divisors is an integer number (467715600).

Almost surely, 2^3549959221 is an apocalyptic number.

It is an amenable number.

3549959221 is a deficient number, since it is larger than the sum of its proper divisors (191765579).

3549959221 is a wasteful number, since it uses less digits than its factorization.

3549959221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 246299.

The product of its digits is 874800, while the sum is 49.

The square root of 3549959221 is about 59581.5342283161. The cubic root of 3549959221 is about 1525.4844607541.

The spelling of 3549959221 in words is "three billion, five hundred forty-nine million, nine hundred fifty-nine thousand, two hundred twenty-one".