28274598 has 48 divisors (see below), whose sum is σ = 67955472. Its totient is φ = 8424000.

The previous prime is 28274591. The next prime is 28274611. The reversal of 28274598 is 89547282.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28274591) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 10908 + ... + 13248.

It is an arithmetic number, because the mean of its divisors is an integer number (1415739).

Almost surely, 2^28274598 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 28274598, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (33977736).

28274598 is an abundant number, since it is smaller than the sum of its proper divisors (39680874).

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

28274598 is a wasteful number, since it uses less digits than its factorization.

28274598 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2421 (or 2418 counting only the distinct ones).

The product of its digits is 322560, while the sum is 45.

The square root of 28274598 is about 5317.3863880670. The cubic root of 28274598 is about 304.6483378621.

The spelling of 28274598 in words is "twenty-eight million, two hundred seventy-four thousand, five hundred ninety-eight".