1982143488 has 88 divisors (see below), whose sum is σ = 5689644688. Its totient is φ = 609878016.

The previous prime is 1982143487. The next prime is 1982143507. The reversal of 1982143488 is 8843412891.

It is a happy number.

It is a super-2 number, since 2×1982143488² = 7857785614041612288, which contains 22 as substring.

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 (1982143481) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15120 + ... + 64752.

Almost surely, 2^1982143488 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 1982143488, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2844822344).

1982143488 is an abundant number, since it is smaller than the sum of its proper divisors (3707501200).

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

1982143488 is a wasteful number, since it uses less digits than its factorization.

1982143488 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49669 (or 49651 counting only the distinct ones).

The product of its digits is 442368, while the sum is 48.

The square root of 1982143488 is about 44521.2700627464. The cubic root of 1982143488 is about 1256.1602024277.

The spelling of 1982143488 in words is "one billion, nine hundred eighty-two million, one hundred forty-three thousand, four hundred eighty-eight".