1988913472 has 112 divisors (see below), whose sum is σ = 4897607680. Its totient is φ = 780337152.

The previous prime is 1988913439. The next prime is 1988913497. The reversal of 1988913472 is 2743198891.

It is a tau number, because it is divible by the number of its divisors (112).

It is a Harshad number since it is a multiple of its sum of digits (52).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 738304 + ... + 740992.

It is an arithmetic number, because the mean of its divisors is an integer number (43728640).

Almost surely, 2^1988913472 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 1988913472, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2448803840).

1988913472 is an abundant number, since it is smaller than the sum of its proper divisors (2908694208).

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

1988913472 is a wasteful number, since it uses less digits than its factorization.

1988913472 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2848 (or 2838 counting only the distinct ones).

The product of its digits is 870912, while the sum is 52.

The square root of 1988913472 is about 44597.2361475462. The cubic root of 1988913472 is about 1257.5887099799.

The spelling of 1988913472 in words is "one billion, nine hundred eighty-eight million, nine hundred thirteen thousand, four hundred seventy-two".