28356000 has 192 divisors, whose sum is σ = 99066240. Its totient is φ = 7065600.

The previous prime is 28355981. The next prime is 28356019. The reversal of 28356000 is 65382.

It is an interprime number because it is at equal distance from previous prime (28355981) and next prime (28356019).

It is a Harshad number since it is a multiple of its sum of digits (24).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 203931 + ... + 204069.

It is an arithmetic number, because the mean of its divisors is an integer number (515970).

Almost surely, 2^28356000 is an apocalyptic number.

28356000 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 28356000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (49533120).

28356000 is an abundant number, since it is smaller than the sum of its proper divisors (70710240).

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

28356000 is a wasteful number, since it uses less digits than its factorization.

28356000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 184 (or 166 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 24.

The square root of 28356000 is about 5325.0352111512. The cubic root of 28356000 is about 304.9404165611.

The spelling of 28356000 in words is "twenty-eight million, three hundred fifty-six thousand".