28362132 has 18 divisors (see below), whose sum is σ = 71693258. Its totient is φ = 9454032.

The previous prime is 28362109. The next prime is 28362149. The reversal of 28362132 is 23126382.

28362132 is a `hidden beast` number, since 2 + 8 + 3 + 621 + 32 = 666.

It can be written as a sum of positive squares in only one way, i.e., 18096516 + 10265616 = 4254^2 + 3204^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a junction number, because it is equal to n+sod(n) for n = 28362096 and 28362105.

It is a congruent number.

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 5 ways as a sum of consecutive naturals, for example, 393883 + ... + 393954.

Almost surely, 2^28362132 is an apocalyptic number.

It is an amenable number.

28362132 is an abundant number, since it is smaller than the sum of its proper divisors (43331126).

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

28362132 is a wasteful number, since it uses less digits than its factorization.

28362132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 787847 (or 787842 counting only the distinct ones).

The product of its digits is 3456, while the sum is 27.

The square root of 28362132 is about 5325.6109508675. The cubic root of 28362132 is about 304.9623961523.

The spelling of 28362132 in words is "twenty-eight million, three hundred sixty-two thousand, one hundred thirty-two".