28528026 has 16 divisors (see below), whose sum is σ = 57109728. Its totient is φ = 9500400.

The previous prime is 28528021. The next prime is 28528037. The reversal of 28528026 is 62082582.

It is not an unprimeable number, because it can be changed into a prime (28528021) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9081 + ... + 11811.

It is an arithmetic number, because the mean of its divisors is an integer number (3569358).

Almost surely, 2^28528026 is an apocalyptic number.

28528026 is an abundant number, since it is smaller than the sum of its proper divisors (28581702).

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

28528026 is a wasteful number, since it uses less digits than its factorization.

28528026 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4477.

The product of its (nonzero) digits is 15360, while the sum is 33.

The square root of 28528026 is about 5341.1633564234. The cubic root of 28528026 is about 305.5558295878. Note that the first 3 decimals are identical.

It can be divided in two parts, 2852 and 8026, that added together give a triangular number (10878 = T₁₄₇).

The spelling of 28528026 in words is "twenty-eight million, five hundred twenty-eight thousand, twenty-six".