28341558 has 48 divisors (see below), whose sum is σ = 71824896. Its totient is φ = 7907760.

The previous prime is 28341541. The next prime is 28341563. The reversal of 28341558 is 85514382.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

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 23 ways as a sum of consecutive naturals, for example, 2803 + ... + 8033.

It is an arithmetic number, because the mean of its divisors is an integer number (1496352).

Almost surely, 2^28341558 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 28341558, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (35912448).

28341558 is an abundant number, since it is smaller than the sum of its proper divisors (43483338).

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

28341558 is a wasteful number, since it uses less digits than its factorization.

28341558 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5289 (or 5286 counting only the distinct ones).

The product of its digits is 38400, while the sum is 36.

The square root of 28341558 is about 5323.6789910737. The cubic root of 28341558 is about 304.8886380149. Note that the first 3 decimals are identical.

The spelling of 28341558 in words is "twenty-eight million, three hundred forty-one thousand, five hundred fifty-eight".