1028984100 has 72 divisors (see below), whose sum is σ = 2981350848. Its totient is φ = 274012800.

The previous prime is 1028984071. The next prime is 1028984101. The reversal of 1028984100 is 14898201.

It is not an unprimeable number, because it can be changed into a prime (1028984101) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 261145 + ... + 265055.

Almost surely, 2^1028984100 is an apocalyptic number.

1028984100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1028984100 is an abundant number, since it is smaller than the sum of its proper divisors (1952366748).

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

1028984100 is a wasteful number, since it uses less digits than its factorization.

1028984100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4805 (or 4798 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 33.

The square root of 1028984100 is about 32077.7820305582. The cubic root of 1028984100 is about 1009.5694992410.

The spelling of 1028984100 in words is "one billion, twenty-eight million, nine hundred eighty-four thousand, one hundred".