1001028980 has 24 divisors (see below), whose sum is σ = 2402469888. Its totient is φ = 343209888.

The previous prime is 1001028923. The next prime is 1001029009. The reversal of 1001028980 is 898201001.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 3574964 + ... + 3575243.

It is an arithmetic number, because the mean of its divisors is an integer number (100102912).

Almost surely, 2^1001028980 is an apocalyptic number.

1001028980 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1001028980 is an abundant number, since it is smaller than the sum of its proper divisors (1401440908).

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

1001028980 is a wasteful number, since it uses less digits than its factorization.

1001028980 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7150223 (or 7150221 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 29.

The square root of 1001028980 is about 31639.0420208956. The cubic root of 1001028980 is about 1000.3428757561.

Adding to 1001028980 its reverse (898201001), we get a palindrome (1899229981).

The spelling of 1001028980 in words is "one billion, one million, twenty-eight thousand, nine hundred eighty".