1488978988 has 96 divisors (see below), whose sum is σ = 3137863680. Its totient is φ = 605102400.

The previous prime is 1488978977. The next prime is 1488979013. The reversal of 1488978988 is 8898798841.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 9860713 + ... + 9860863.

It is an arithmetic number, because the mean of its divisors is an integer number (32686080).

Almost surely, 2^1488978988 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 1488978988, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1568931840).

1488978988 is an abundant number, since it is smaller than the sum of its proper divisors (1648884692).

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

1488978988 is a wasteful number, since it uses less digits than its factorization.

1488978988 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 395 (or 393 counting only the distinct ones).

The product of its digits is 74317824, while the sum is 70.

The square root of 1488978988 is about 38587.2904982975. The cubic root of 1488978988 is about 1141.9038127883.

The spelling of 1488978988 in words is "one billion, four hundred eighty-eight million, nine hundred seventy-eight thousand, nine hundred eighty-eight".