28526172 has 48 divisors (see below), whose sum is σ = 68117280. Its totient is φ = 9289728.

The previous prime is 28526171. The next prime is 28526203. The reversal of 28526172 is 27162582.

It is a hoax number, since the sum of its digits (33) coincides with the sum of the digits of its distinct prime factors.

Its product of digits (13440) is a multiple of the sum of its prime divisors (420).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28526171) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 147708 + ... + 147900.

It is an arithmetic number, because the mean of its divisors is an integer number (1419110).

Almost surely, 2^28526172 is an apocalyptic number.

It is an amenable number.

28526172 is an abundant number, since it is smaller than the sum of its proper divisors (39591108).

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

28526172 is a wasteful number, since it uses less digits than its factorization.

28526172 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 422 (or 420 counting only the distinct ones).

The product of its digits is 13440, while the sum is 33.

The square root of 28526172 is about 5340.9897959086. The cubic root of 28526172 is about 305.5492102166.

The spelling of 28526172 in words is "twenty-eight million, five hundred twenty-six thousand, one hundred seventy-two".