3220478352 has 600 divisors, whose sum is σ = 12068977536. Its totient is φ = 821270016.

The previous prime is 3220478309. The next prime is 3220478353. The reversal of 3220478352 is 2538740223.

3220478352 is a `hidden beast` number, since 32 + 204 + 78 + 352 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (3220478353) by changing a digit.

It is a polite number, since it can be written in 119 ways as a sum of consecutive naturals, for example, 38800903 + ... + 38800985.

Almost surely, 2^3220478352 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3220478352, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6034488768).

3220478352 is an abundant number, since it is smaller than the sum of its proper divisors (8848499184).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

3220478352 is a wasteful number, since it uses less digits than its factorization.

3220478352 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 177 (or 155 counting only the distinct ones).

The product of its (nonzero) digits is 80640, while the sum is 36.

The square root of 3220478352 is about 56749.2586030866. The cubic root of 3220478352 is about 1476.7493716081.

The spelling of 3220478352 in words is "three billion, two hundred twenty million, four hundred seventy-eight thousand, three hundred fifty-two".