3206120720 has 80 divisors (see below), whose sum is σ = 8142550272. Its totient is φ = 1164334080.

The previous prime is 3206120713. The next prime is 3206120759. The reversal of 3206120720 is 270216023.

It is a tau number, because it is divible by the number of its divisors (80).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 836729 + ... + 840551.

Almost surely, 2^3206120720 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 3206120720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4071275136).

3206120720 is an abundant number, since it is smaller than the sum of its proper divisors (4936429552).

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

3206120720 is a wasteful number, since it uses less digits than its factorization.

3206120720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4800 (or 4794 counting only the distinct ones).

The product of its (nonzero) digits is 1008, while the sum is 23.

The square root of 3206120720 is about 56622.6166827355. The cubic root of 3206120720 is about 1474.5515396187.

Adding to 3206120720 its reverse (270216023), we get a palindrome (3476336743).

The spelling of 3206120720 in words is "three billion, two hundred six million, one hundred twenty thousand, seven hundred twenty".