28449632 has 12 divisors (see below), whose sum is σ = 56010276. Its totient is φ = 14224800.

The previous prime is 28449611. The next prime is 28449647. The reversal of 28449632 is 23694482.

It is a happy number.

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 as a sum of consecutive naturals, namely, 444494 + ... + 444557.

It is an arithmetic number, because the mean of its divisors is an integer number (4667523).

Almost surely, 2^28449632 is an apocalyptic number.

It is an amenable number.

28449632 is a deficient number, since it is larger than the sum of its proper divisors (27560644).

28449632 is an equidigital number, since it uses as much as digits as its factorization.

28449632 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 889061 (or 889053 counting only the distinct ones).

The product of its digits is 82944, while the sum is 38.

The square root of 28449632 is about 5333.8196444949. The cubic root of 28449632 is about 305.2756873093.

The spelling of 28449632 in words is "twenty-eight million, four hundred forty-nine thousand, six hundred thirty-two".