28036860 has 48 divisors (see below), whose sum is σ = 80336256. Its totient is φ = 7301952.

The previous prime is 28036807. The next prime is 28036867. The reversal of 28036860 is 6863082.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28036867) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2854 + ... + 8013.

It is an arithmetic number, because the mean of its divisors is an integer number (1673672).

Almost surely, 2^28036860 is an apocalyptic number.

28036860 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

28036860 is an abundant number, since it is smaller than the sum of its proper divisors (52299396).

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

28036860 is a wasteful number, since it uses less digits than its factorization.

28036860 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10922 (or 10920 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 33.

The square root of 28036860 is about 5294.9844192405. The cubic root of 28036860 is about 303.7920871757.

Subtracting from 28036860 its reverse (6863082), we obtain a triangular number (21173778 = T₆₅₀₇).

The spelling of 28036860 in words is "twenty-eight million, thirty-six thousand, eight hundred sixty".