3249861888 has 432 divisors, whose sum is σ = 11071939200. Its totient is φ = 845365248.

The previous prime is 3249861883. The next prime is 3249861893. The reversal of 3249861888 is 8881689423.

It is an interprime number because it is at equal distance from previous prime (3249861883) and next prime (3249861893).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3249861883) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 44518620 + ... + 44518692.

Almost surely, 2^3249861888 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 3249861888, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5535969600).

3249861888 is an abundant number, since it is smaller than the sum of its proper divisors (7822077312).

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

3249861888 is an equidigital number, since it uses as much as digits as its factorization.

3249861888 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 139 (or 98 counting only the distinct ones).

The product of its digits is 5308416, while the sum is 57.

The square root of 3249861888 is about 57007.5599197159. The cubic root of 3249861888 is about 1481.2270515343.

The spelling of 3249861888 in words is "three billion, two hundred forty-nine million, eight hundred sixty-one thousand, eight hundred eighty-eight".