1982231904 has 48 divisors (see below), whose sum is σ = 5228072640. Its totient is φ = 657605760.

The previous prime is 1982231903. The next prime is 1982231921. The reversal of 1982231904 is 4091322891.

It is a tau number, because it is divible by the number of its divisors (48).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1982231903) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 28674 + ... + 69185.

It is an arithmetic number, because the mean of its divisors is an integer number (108918180).

Almost surely, 2^1982231904 is an apocalyptic number.

It is an amenable number.

1982231904 is an abundant number, since it is smaller than the sum of its proper divisors (3245840736).

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

1982231904 is a wasteful number, since it uses less digits than its factorization.

1982231904 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 98083 (or 98075 counting only the distinct ones).

The product of its (nonzero) digits is 31104, while the sum is 39.

The square root of 1982231904 is about 44522.2630152601. The cubic root of 1982231904 is about 1256.1788796845.

The spelling of 1982231904 in words is "one billion, nine hundred eighty-two million, two hundred thirty-one thousand, nine hundred four".