28990143000 has 1792 divisors, whose sum is σ = 137497651200. Its totient is φ = 5542732800.

The previous prime is 28990142989. The next prime is 28990143001. The reversal of 28990143000 is 34109982.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28990143001) by changing a digit.

It is a polite number, since it can be written in 447 ways as a sum of consecutive naturals, for example, 1260440989 + ... + 1260441011.

It is an arithmetic number, because the mean of its divisors is an integer number (76728600).

Almost surely, 2^28990143000 is an apocalyptic number.

28990143000 is a gapful number since it is divisible by the number (20) 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 28990143000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (68748825600).

28990143000 is an abundant number, since it is smaller than the sum of its proper divisors (108507508200).

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

28990143000 is a wasteful number, since it uses less digits than its factorization.

28990143000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 101 (or 72 counting only the distinct ones).

The product of its (nonzero) digits is 15552, while the sum is 36.

The spelling of 28990143000 in words is "twenty-eight billion, nine hundred ninety million, one hundred forty-three thousand".