28449932 has 12 divisors (see below), whose sum is σ = 56899920. Its totient is φ = 12192816.

The previous prime is 28449931. The next prime is 28449979. The reversal of 28449932 is 23994482.

28449932 is an admirable number.

It is a self number, because there is not a number n which added to its sum of digits gives 28449932.

It is not an unprimeable number, because it can be changed into a prime (28449931) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 508007 + ... + 508062.

It is an arithmetic number, because the mean of its divisors is an integer number (4741660).

Almost surely, 2^28449932 is an apocalyptic number.

It is an amenable number.

28449932 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

28449932 is a wasteful number, since it uses less digits than its factorization.

28449932 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1016080 (or 1016078 counting only the distinct ones).

The product of its digits is 124416, while the sum is 41.

The square root of 28449932 is about 5333.8477668565. The cubic root of 28449932 is about 305.2767603447.

The spelling of 28449932 in words is "twenty-eight million, four hundred forty-nine thousand, nine hundred thirty-two".