3884649240 has 128 divisors (see below), whose sum is σ = 12247868160. Its totient is φ = 984420864.

The previous prime is 3884649233. The next prime is 3884649247. The reversal of 3884649240 is 429464883.

It is an interprime number because it is at equal distance from previous prime (3884649233) and next prime (3884649247).

It is a self number, because there is not a number n which added to its sum of digits gives 3884649240.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3884649247) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 180747 + ... + 201093.

It is an arithmetic number, because the mean of its divisors is an integer number (95686470).

Almost surely, 2^3884649240 is an apocalyptic number.

3884649240 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3884649240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6123934080).

3884649240 is an abundant number, since it is smaller than the sum of its proper divisors (8363218920).

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

3884649240 is a wasteful number, since it uses less digits than its factorization.

3884649240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20441 (or 20437 counting only the distinct ones).

The product of its (nonzero) digits is 1327104, while the sum is 48.

The square root of 3884649240 is about 62326.9543616564. The cubic root of 3884649240 is about 1571.9929847080.

The spelling of 3884649240 in words is "three billion, eight hundred eighty-four million, six hundred forty-nine thousand, two hundred forty".