28336424 has 8 divisors (see below), whose sum is σ = 53130810. Its totient is φ = 14168208.

The previous prime is 28336423. The next prime is 28336439. The reversal of 28336424 is 42463382.

It can be written as a sum of positive squares in only one way, i.e., 21996100 + 6340324 = 4690^2 + 2518^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is not an unprimeable number, because it can be changed into a prime (28336421) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1771019 + ... + 1771034.

Almost surely, 2^28336424 is an apocalyptic number.

It is an amenable number.

28336424 is a deficient number, since it is larger than the sum of its proper divisors (24794386).

28336424 is a wasteful number, since it uses less digits than its factorization.

28336424 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3542059 (or 3542055 counting only the distinct ones).

The product of its digits is 27648, while the sum is 32.

The square root of 28336424 is about 5323.1967838884. The cubic root of 28336424 is about 304.8702269735.

The spelling of 28336424 in words is "twenty-eight million, three hundred thirty-six thousand, four hundred twenty-four".