3143781984 has 144 divisors (see below), whose sum is σ = 10164713328. Its totient is φ = 845365248.

The previous prime is 3143781983. The next prime is 3143782021. The reversal of 3143781984 is 4891873413.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3143781983) 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, 60312 + ... + 99624.

It is an arithmetic number, because the mean of its divisors is an integer number (70588287).

Almost surely, 2^3143781984 is an apocalyptic number.

3143781984 is a gapful number since it is divisible by the number (34) 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 3143781984, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5082356664).

3143781984 is an abundant number, since it is smaller than the sum of its proper divisors (7020931344).

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

3143781984 is a wasteful number, since it uses less digits than its factorization.

3143781984 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39357 (or 39342 counting only the distinct ones).

The product of its digits is 580608, while the sum is 48.

The square root of 3143781984 is about 56069.4389485038. The cubic root of 3143781984 is about 1464.9320261845.

The spelling of 3143781984 in words is "three billion, one hundred forty-three million, seven hundred eighty-one thousand, nine hundred eighty-four".