28955000 has 40 divisors (see below), whose sum is σ = 67853280. Its totient is φ = 11580000.

The previous prime is 28954969. The next prime is 28955009. The reversal of 28955000 is 55982.

It is a tau number, because it is divible by the number of its divisors (40).

It is a hoax number, since the sum of its digits (29) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28955009) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 2105 + ... + 7895.

It is an arithmetic number, because the mean of its divisors is an integer number (1696332).

Almost surely, 2^28955000 is an apocalyptic number.

28955000 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 28955000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (33926640).

28955000 is an abundant number, since it is smaller than the sum of its proper divisors (38898280).

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

28955000 is an equidigital number, since it uses as much as digits as its factorization.

28955000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5817 (or 5798 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 29.

The square root of 28955000 is about 5380.9850399346. The cubic root of 28955000 is about 307.0726873620.

The spelling of 28955000 in words is "twenty-eight million, nine hundred fifty-five thousand".