3444646221 has 12 divisors (see below), whose sum is σ = 5191930848. Its totient is φ = 2196585864.

The previous prime is 3444646217. The next prime is 3444646229. The reversal of 3444646221 is 1226464443.

3444646221 is a `hidden beast` number, since 3 + 4 + 4 + 4 + 646 + 2 + 2 + 1 = 666.

It is not a de Polignac number, because 3444646221 - 2² = 3444646217 is a prime.

It is a super-3 number, since 3×3444646221³ (a number of 30 digits) contains 333 as substring.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3444646229) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 8320195 + ... + 8320608.

It is an arithmetic number, because the mean of its divisors is an integer number (432660904).

Almost surely, 2^3444646221 is an apocalyptic number.

It is an amenable number.

3444646221 is a deficient number, since it is larger than the sum of its proper divisors (1747284627).

3444646221 is a wasteful number, since it uses less digits than its factorization.

3444646221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16640832 (or 16640829 counting only the distinct ones).

The product of its digits is 110592, while the sum is 36.

The square root of 3444646221 is about 58691.1085344279. The cubic root of 3444646221 is about 1510.2477877941.

The spelling of 3444646221 in words is "three billion, four hundred forty-four million, six hundred forty-six thousand, two hundred twenty-one".