28035449 has 8 divisors (see below), whose sum is σ = 30308040. Its totient is φ = 25779456.

The previous prime is 28035407. The next prime is 28035457. The reversal of 28035449 is 94453082.

It can be written as a sum of positive squares in 4 ways, for example, as 19600 + 28015849 = 140^2 + 5293^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-28035449 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (28035149) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 512 + ... + 7505.

It is an arithmetic number, because the mean of its divisors is an integer number (3788505).

Almost surely, 2^28035449 is an apocalyptic number.

It is an amenable number.

28035449 is a deficient number, since it is larger than the sum of its proper divisors (2272591).

28035449 is a wasteful number, since it uses less digits than its factorization.

28035449 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8299.

The product of its (nonzero) digits is 34560, while the sum is 35.

The square root of 28035449 is about 5294.8511782674. The cubic root of 28035449 is about 303.7869908153.

The spelling of 28035449 in words is "twenty-eight million, thirty-five thousand, four hundred forty-nine".