1001132988 has 24 divisors (see below), whose sum is σ = 2336702592. Its totient is φ = 333607344.

The previous prime is 1001132959. The next prime is 1001132989. The reversal of 1001132988 is 8892311001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1001132989) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 34131 + ... + 56277.

It is an arithmetic number, because the mean of its divisors is an integer number (97362608).

Almost surely, 2^1001132988 is an apocalyptic number.

It is an amenable number.

1001132988 is an abundant number, since it is smaller than the sum of its proper divisors (1335569604).

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

1001132988 is a wasteful number, since it uses less digits than its factorization.

1001132988 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25921 (or 25919 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 33.

The square root of 1001132988 is about 31640.6856436456. The cubic root of 1001132988 is about 1000.3775201273.

Adding to 1001132988 its reverse (8892311001), we get a palindrome (9893443989).

The spelling of 1001132988 in words is "one billion, one million, one hundred thirty-two thousand, nine hundred eighty-eight".