28386130 has 16 divisors (see below), whose sum is σ = 51243840. Its totient is φ = 11321392.

The previous prime is 28386121. The next prime is 28386131. The reversal of 28386130 is 3168382.

It is a junction number, because it is equal to n+sod(n) for n = 28386092 and 28386101.

It is not an unprimeable number, because it can be changed into a prime (28386131) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 364 + ... + 7543.

It is an arithmetic number, because the mean of its divisors is an integer number (3202740).

Almost surely, 2^28386130 is an apocalyptic number.

28386130 is a deficient number, since it is larger than the sum of its proper divisors (22857710).

28386130 is a wasteful number, since it uses less digits than its factorization.

28386130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8273.

The product of its (nonzero) digits is 6912, while the sum is 31.

The square root of 28386130 is about 5327.8635493038. The cubic root of 28386130 is about 305.0483843334.

The spelling of 28386130 in words is "twenty-eight million, three hundred eighty-six thousand, one hundred thirty".