28083432 has 32 divisors (see below), whose sum is σ = 75610080. Its totient is φ = 8640960.

The previous prime is 28083379. The next prime is 28083449. The reversal of 28083432 is 23438082.

28083432 is a modest number, since divided by 3432 gives 2808 as remainder.

It is a self number, because there is not a number n which added to its sum of digits gives 28083432.

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 7 ways as a sum of consecutive naturals, for example, 44694 + ... + 45317.

It is an arithmetic number, because the mean of its divisors is an integer number (2362815).

Almost surely, 2^28083432 is an apocalyptic number.

It is an amenable number.

28083432 is an abundant number, since it is smaller than the sum of its proper divisors (47526648).

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

28083432 is a wasteful number, since it uses less digits than its factorization.

28083432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 90033 (or 90029 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 30.

The square root of 28083432 is about 5299.3803411342. The cubic root of 28083432 is about 303.9602037010.

The spelling of 28083432 in words is "twenty-eight million, eighty-three thousand, four hundred thirty-two".