28427302 has 8 divisors (see below), whose sum is σ = 42691896. Its totient is φ = 14196672.

The previous prime is 28427293. The next prime is 28427303. The reversal of 28427302 is 20372482.

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

It is a super-2 number, since 2×28427302² = 1616222997998408, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28427303) 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 3 ways as a sum of consecutive naturals, for example, 6283 + ... + 9814.

It is an arithmetic number, because the mean of its divisors is an integer number (5336487).

Almost surely, 2^28427302 is an apocalyptic number.

28427302 is a deficient number, since it is larger than the sum of its proper divisors (14264594).

28427302 is a wasteful number, since it uses less digits than its factorization.

28427302 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16982.

The product of its (nonzero) digits is 5376, while the sum is 28.

The square root of 28427302 is about 5331.7259869577. The cubic root of 28427302 is about 305.1957965235.

Adding to 28427302 its reverse (20372482), we get a palindrome (48799784).

The spelling of 28427302 in words is "twenty-eight million, four hundred twenty-seven thousand, three hundred two".