3265722720 has 288 divisors, whose sum is σ = 12283663392. Its totient is φ = 784982016.

The previous prime is 3265722703. The next prime is 3265722769. The reversal of 3265722720 is 272275623.

It is a tau number, because it is divible by the number of its divisors (288).

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 802932 + ... + 806988.

It is an arithmetic number, because the mean of its divisors is an integer number (42651609).

Almost surely, 2^3265722720 is an apocalyptic number.

3265722720 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3265722720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6141831696).

3265722720 is an abundant number, since it is smaller than the sum of its proper divisors (9017940672).

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

3265722720 is a wasteful number, since it uses less digits than its factorization.

3265722720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4134 (or 4123 counting only the distinct ones).

The product of its (nonzero) digits is 70560, while the sum is 36.

The square root of 3265722720 is about 57146.5022551687. The cubic root of 3265722720 is about 1483.6328334626.

The spelling of 3265722720 in words is "three billion, two hundred sixty-five million, seven hundred twenty-two thousand, seven hundred twenty".