28948500 has 144 divisors (see below), whose sum is σ = 104482560. Its totient is φ = 6609600.

The previous prime is 28948499. The next prime is 28948531. The reversal of 28948500 is 584982.

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 an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 31041 + ... + 31959.

Almost surely, 2^28948500 is an apocalyptic number.

28948500 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 28948500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (52241280).

28948500 is an abundant number, since it is smaller than the sum of its proper divisors (75534060).

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

28948500 is a wasteful number, since it uses less digits than its factorization.

28948500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 951 (or 936 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 36.

The square root of 28948500 is about 5380.3810273995. The cubic root of 28948500 is about 307.0497077748.

The spelling of 28948500 in words is "twenty-eight million, nine hundred forty-eight thousand, five hundred".