28326426 has 16 divisors (see below), whose sum is σ = 56705184. Its totient is φ = 9433424.

The previous prime is 28326413. The next prime is 28326457. The reversal of 28326426 is 62462382.

It is a Curzon 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, 10840 + ... + 13196.

It is an arithmetic number, because the mean of its divisors is an integer number (3544074).

Almost surely, 2^28326426 is an apocalyptic number.

28326426 is an abundant number, since it is smaller than the sum of its proper divisors (28378758).

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

28326426 is a wasteful number, since it uses less digits than its factorization.

28326426 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4365.

The product of its digits is 27648, while the sum is 33.

The square root of 28326426 is about 5322.2576036866. The cubic root of 28326426 is about 304.8343667548.

The spelling of 28326426 in words is "twenty-eight million, three hundred twenty-six thousand, four hundred twenty-six".