28826406 has 120 divisors (see below), whose sum is σ = 78652080. Its totient is φ = 7606368.

The previous prime is 28826393. The next prime is 28826417. The reversal of 28826406 is 60462882.

28826406 is a `hidden beast` number, since 2 + 8 + 8 + 2 + 640 + 6 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 59 ways as a sum of consecutive naturals, for example, 994000 + ... + 994028.

It is an arithmetic number, because the mean of its divisors is an integer number (655434).

Almost surely, 2^28826406 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 28826406, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (39326040).

28826406 is an abundant number, since it is smaller than the sum of its proper divisors (49825674).

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

28826406 is a wasteful number, since it uses less digits than its factorization.

28826406 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 88 (or 64 counting only the distinct ones).

The product of its (nonzero) digits is 36864, while the sum is 36.

The square root of 28826406 is about 5369.0228161184. The cubic root of 28826406 is about 306.6174256688.

The spelling of 28826406 in words is "twenty-eight million, eight hundred twenty-six thousand, four hundred six".