3949221135 has 16 divisors (see below), whose sum is σ = 6341088384. Its totient is φ = 2098806432.

The previous prime is 3949221113. The next prime is 3949221149. The reversal of 3949221135 is 5311229493.

It is not a de Polignac number, because 3949221135 - 2⁶ = 3949221071 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 3949221093 and 3949221102.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 460917 + ... + 469406.

It is an arithmetic number, because the mean of its divisors is an integer number (396318024).

Almost surely, 2^3949221135 is an apocalyptic number.

3949221135 is a deficient number, since it is larger than the sum of its proper divisors (2391867249).

3949221135 is a wasteful number, since it uses less digits than its factorization.

3949221135 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 930614.

The product of its digits is 58320, while the sum is 39.

The square root of 3949221135 is about 62842.8288271621. The cubic root of 3949221135 is about 1580.6552234888.

The spelling of 3949221135 in words is "three billion, nine hundred forty-nine million, two hundred twenty-one thousand, one hundred thirty-five".