3018449688 has 128 divisors (see below), whose sum is σ = 8301009600. Its totient is φ = 910393344.

The previous prime is 3018449663. The next prime is 3018449701. The reversal of 3018449688 is 8869448103.

It is a super-2 number, since 2×3018449688² = 18222077037974594688, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (51).

It is a self number, because there is not a number n which added to its sum of digits gives 3018449688.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3987006 + ... + 3987762.

Almost surely, 2^3018449688 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 3018449688, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4150504800).

3018449688 is an abundant number, since it is smaller than the sum of its proper divisors (5282559912).

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

3018449688 is a wasteful number, since it uses less digits than its factorization.

3018449688 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1149 (or 1145 counting only the distinct ones).

The product of its (nonzero) digits is 1327104, while the sum is 51.

The square root of 3018449688 is about 54940.4194377873. The cubic root of 3018449688 is about 1445.2000917028.

The spelling of 3018449688 in words is "three billion, eighteen million, four hundred forty-nine thousand, six hundred eighty-eight".