4406905221 has 32 divisors (see below), whose sum is σ = 6163516800. Its totient is φ = 2797132800.

The previous prime is 4406905211. The next prime is 4406905241. The reversal of 4406905221 is 1225096044.

It is not a de Polignac number, because 4406905221 - 2⁷ = 4406905093 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4406905211) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4653070 + ... + 4654016.

It is an arithmetic number, because the mean of its divisors is an integer number (192609900).

Almost surely, 2^4406905221 is an apocalyptic number.

It is an amenable number.

4406905221 is a deficient number, since it is larger than the sum of its proper divisors (1756611579).

4406905221 is a wasteful number, since it uses less digits than its factorization.

4406905221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1669.

The product of its (nonzero) digits is 17280, while the sum is 33.

The square root of 4406905221 is about 66384.5254633940. The cubic root of 4406905221 is about 1639.4993044444.

The spelling of 4406905221 in words is "four billion, four hundred six million, nine hundred five thousand, two hundred twenty-one".