1982289824 has 24 divisors (see below), whose sum is σ = 3903624900. Its totient is φ = 990893056.

The previous prime is 1982289739. The next prime is 1982289857. The reversal of 1982289824 is 4289822891.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 1806250000 + 176039824 = 42500^2 + 13268^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 245402 + ... + 253350.

Almost surely, 2^1982289824 is an apocalyptic number.

It is an amenable number.

1982289824 is a deficient number, since it is larger than the sum of its proper divisors (1921335076).

1982289824 is an equidigital number, since it uses as much as digits as its factorization.

1982289824 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15752 (or 15744 counting only the distinct ones).

The product of its digits is 1327104, while the sum is 53.

The square root of 1982289824 is about 44522.9134716047. The cubic root of 1982289824 is about 1256.1911145752.

The spelling of 1982289824 in words is "one billion, nine hundred eighty-two million, two hundred eighty-nine thousand, eight hundred twenty-four".