3220661446 has 4 divisors (see below), whose sum is σ = 4830992172. Its totient is φ = 1610330722.

The previous prime is 3220661399. The next prime is 3220661447. The reversal of 3220661446 is 6441660223.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 6441660223 = 181 ⋅35589283.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3220661447) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 805165360 + ... + 805165363.

It is an arithmetic number, because the mean of its divisors is an integer number (1207748043).

Almost surely, 2^3220661446 is an apocalyptic number.

3220661446 is a deficient number, since it is larger than the sum of its proper divisors (1610330726).

3220661446 is a wasteful number, since it uses less digits than its factorization.

3220661446 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1610330725.

The product of its (nonzero) digits is 41472, while the sum is 34.

The square root of 3220661446 is about 56750.8717642293. The cubic root of 3220661446 is about 1476.7773569771. Note that the first 3 decimals are identical.

The spelling of 3220661446 in words is "three billion, two hundred twenty million, six hundred sixty-one thousand, four hundred forty-six".