28092132 has 36 divisors (see below), whose sum is σ = 71289036. Its totient is φ = 9327360.

The previous prime is 28092091. The next prime is 28092133. The reversal of 28092132 is 23129082.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 11249316 + 16842816 = 3354^2 + 4104^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is a junction number, because it is equal to n+sod(n) for n = 28092096 and 28092105.

It is not an unprimeable number, because it can be changed into a prime (28092133) 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 11 ways as a sum of consecutive naturals, for example, 8728 + ... + 11504.

It is an arithmetic number, because the mean of its divisors is an integer number (1980251).

Almost surely, 2^28092132 is an apocalyptic number.

It is an amenable number.

28092132 is an abundant number, since it is smaller than the sum of its proper divisors (43196904).

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

28092132 is a wasteful number, since it uses less digits than its factorization.

28092132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3068 (or 3063 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 27.

The square root of 28092132 is about 5300.2011282592. The cubic root of 28092132 is about 303.9915885253.

It can be divided in two parts, 28092 and 132, that added together give a square (28224 = 168²).

The spelling of 28092132 in words is "twenty-eight million, ninety-two thousand, one hundred thirty-two".