28182419 has 8 divisors (see below), whose sum is σ = 29123808. Its totient is φ = 27250560.

The previous prime is 28182397. The next prime is 28182421. The reversal of 28182419 is 91428182.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 28182419 - 2¹² = 28178323 is a prime.

It is a super-2 number, since 2×28182419² = 1588497481383122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (28182449) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 3899 + ... + 8459.

It is an arithmetic number, because the mean of its divisors is an integer number (3640476).

Almost surely, 2^28182419 is an apocalyptic number.

28182419 is a deficient number, since it is larger than the sum of its proper divisors (941389).

28182419 is a wasteful number, since it uses less digits than its factorization.

28182419 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4765.

The product of its digits is 9216, while the sum is 35.

The square root of 28182419 is about 5308.7116139417. The cubic root of 28182419 is about 304.3169125576.

The spelling of 28182419 in words is "twenty-eight million, one hundred eighty-two thousand, four hundred nineteen".