1029889000 has 128 divisors (see below), whose sum is σ = 2773854720. Its totient is φ = 350592000.

The previous prime is 1029888997. The next prime is 1029889013. The reversal of 1029889000 is 9889201.

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, 1168560 + ... + 1169440.

It is an arithmetic number, because the mean of its divisors is an integer number (21670740).

Almost surely, 2^1029889000 is an apocalyptic number.

1029889000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1029889000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1386927360).

1029889000 is an abundant number, since it is smaller than the sum of its proper divisors (1743965720).

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

1029889000 is a wasteful number, since it uses less digits than its factorization.

1029889000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1076 (or 1062 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 37.

The square root of 1029889000 is about 32091.8837091250. The cubic root of 1029889000 is about 1009.8653547268.

The spelling of 1029889000 in words is "one billion, twenty-nine million, eight hundred eighty-nine thousand".