3291618408 has 96 divisors (see below), whose sum is σ = 8964159840. Its totient is φ = 1006736640.

The previous prime is 3291618403. The next prime is 3291618439. The reversal of 3291618408 is 8048161923.

It is a self number, because there is not a number n which added to its sum of digits gives 3291618408.

It is not an unprimeable number, because it can be changed into a prime (3291618403) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 699343 + ... + 704033.

It is an arithmetic number, because the mean of its divisors is an integer number (93376665).

Almost surely, 2^3291618408 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 3291618408, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4482079920).

3291618408 is an abundant number, since it is smaller than the sum of its proper divisors (5672541432).

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

3291618408 is a wasteful number, since it uses less digits than its factorization.

3291618408 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4899 (or 4882 counting only the distinct ones).

The product of its (nonzero) digits is 82944, while the sum is 42.

The square root of 3291618408 is about 57372.6276895176. The cubic root of 3291618408 is about 1487.5440236294.

The spelling of 3291618408 in words is "three billion, two hundred ninety-one million, six hundred eighteen thousand, four hundred eight".