28382700 has 72 divisors (see below), whose sum is σ = 84373072. Its totient is φ = 7361280.

The previous prime is 28382699. The next prime is 28382729. The reversal of 28382700 is 728382.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 9822 + ... + 12378.

Almost surely, 2^28382700 is an apocalyptic number.

28382700 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 28382700, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (42186536).

28382700 is an abundant number, since it is smaller than the sum of its proper divisors (55990372).

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

28382700 is a wasteful number, since it uses less digits than its factorization.

28382700 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2611 (or 2604 counting only the distinct ones).

The product of its (nonzero) digits is 5376, while the sum is 30.

The square root of 28382700 is about 5327.5416469512. The cubic root of 28382700 is about 305.0360971341.

The spelling of 28382700 in words is "twenty-eight million, three hundred eighty-two thousand, seven hundred".