28526992 has 80 divisors (see below), whose sum is σ = 63745920. Its totient is φ = 12266496.

The previous prime is 28526987. The next prime is 28527001. The reversal of 28526992 is 29962582.

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 15 ways as a sum of consecutive naturals, for example, 320484 + ... + 320572.

It is an arithmetic number, because the mean of its divisors is an integer number (796824).

Almost surely, 2^28526992 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 28526992, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (31872960).

28526992 is an abundant number, since it is smaller than the sum of its proper divisors (35218928).

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

28526992 is a wasteful number, since it uses less digits than its factorization.

28526992 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 200 (or 194 counting only the distinct ones).

The product of its digits is 155520, while the sum is 43.

The square root of 28526992 is about 5341.0665601544. The cubic root of 28526992 is about 305.5521379134.

The spelling of 28526992 in words is "twenty-eight million, five hundred twenty-six thousand, nine hundred ninety-two".