3286572640 has 96 divisors (see below), whose sum is σ = 8499206016. Its totient is φ = 1193564160.

The previous prime is 3286572631. The next prime is 3286572659. The reversal of 3286572640 is 462756823.

It is a congruent number.

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, 113929 + ... + 139831.

It is an arithmetic number, because the mean of its divisors is an integer number (88533396).

Almost surely, 2^3286572640 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 3286572640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4249603008).

3286572640 is an abundant number, since it is smaller than the sum of its proper divisors (5212633376).

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

3286572640 is a wasteful number, since it uses less digits than its factorization.

3286572640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25992 (or 25984 counting only the distinct ones).

The product of its (nonzero) digits is 483840, while the sum is 43.

The square root of 3286572640 is about 57328.6371720103. The cubic root of 3286572640 is about 1486.7835425508.

The spelling of 3286572640 in words is "three billion, two hundred eighty-six million, five hundred seventy-two thousand, six hundred forty".