1988056004 has 12 divisors (see below), whose sum is σ = 3795379728. Its totient is φ = 903661800.

The previous prime is 1988056003. The next prime is 1988056033. The reversal of 1988056004 is 4006508891.

It is not an unprimeable number, because it can be changed into a prime (1988056003) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 22591502 + ... + 22591589.

It is an arithmetic number, because the mean of its divisors is an integer number (316281644).

Almost surely, 2^1988056004 is an apocalyptic number.

It is an amenable number.

1988056004 is a deficient number, since it is larger than the sum of its proper divisors (1807323724).

1988056004 is a wasteful number, since it uses less digits than its factorization.

1988056004 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45183106 (or 45183104 counting only the distinct ones).

The product of its (nonzero) digits is 69120, while the sum is 41.

The square root of 1988056004 is about 44587.6216454747. The cubic root of 1988056004 is about 1257.4079585135.

The spelling of 1988056004 in words is "one billion, nine hundred eighty-eight million, fifty-six thousand, four".