3220320829 has 8 divisors (see below), whose sum is σ = 3719729088. Its totient is φ = 2755354560.

The previous prime is 3220320821. The next prime is 3220320841. The reversal of 3220320829 is 9280230223.

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

It is not a de Polignac number, because 3220320829 - 2³ = 3220320821 is a prime.

It is a super-3 number, since 3×3220320829³ (a number of 30 digits) contains 333 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 3220320829.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3220320821) 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, 8610297 + ... + 8610670.

It is an arithmetic number, because the mean of its divisors is an integer number (464966136).

Almost surely, 2^3220320829 is an apocalyptic number.

It is an amenable number.

3220320829 is a deficient number, since it is larger than the sum of its proper divisors (499408259).

3220320829 is a wasteful number, since it uses less digits than its factorization.

3220320829 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17220995.

The product of its (nonzero) digits is 10368, while the sum is 31.

The square root of 3220320829 is about 56747.8707001417. The cubic root of 3220320829 is about 1476.7252938409.

The spelling of 3220320829 in words is "three billion, two hundred twenty million, three hundred twenty thousand, eight hundred twenty-nine".