27298428 has 24 divisors (see below), whose sum is σ = 63783888. Its totient is φ = 9086976.

The previous prime is 27298409. The next prime is 27298441. The reversal of 27298428 is 82489272.

It is a self number, because there is not a number n which added to its sum of digits gives 27298428.

It is a congruent number.

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 7 ways as a sum of consecutive naturals, for example, 12850 + ... + 14822.

It is an arithmetic number, because the mean of its divisors is an integer number (2657662).

Almost surely, 2^27298428 is an apocalyptic number.

It is an amenable number.

27298428 is an abundant number, since it is smaller than the sum of its proper divisors (36485460).

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

27298428 is a wasteful number, since it uses less digits than its factorization.

27298428 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3133 (or 3131 counting only the distinct ones).

The product of its digits is 129024, while the sum is 42.

The square root of 27298428 is about 5224.7897565357. The cubic root of 27298428 is about 301.1012414997.

The spelling of 27298428 in words is "twenty-seven million, two hundred ninety-eight thousand, four hundred twenty-eight".