3216289280 has 80 divisors (see below), whose sum is σ = 7899900624. Its totient is φ = 1255096320.

The previous prime is 3216289273. The next prime is 3216289303. The reversal of 3216289280 is 829826123.

3216289280 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a Harshad number since it is a multiple of its sum of digits (41).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 89639 + ... + 120281.

Almost surely, 2^3216289280 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 3216289280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3949950312).

3216289280 is an abundant number, since it is smaller than the sum of its proper divisors (4683611344).

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

3216289280 is an equidigital number, since it uses as much as digits as its factorization.

3216289280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30707 (or 30691 counting only the distinct ones).

The product of its (nonzero) digits is 82944, while the sum is 41.

The square root of 3216289280 is about 56712.3379874256. The cubic root of 3216289280 is about 1476.1087945502.

The spelling of 3216289280 in words is "three billion, two hundred sixteen million, two hundred eighty-nine thousand, two hundred eighty".