28049201 has 8 divisors (see below), whose sum is σ = 30390624. Its totient is φ = 25784640.

The previous prime is 28049179. The next prime is 28049209. The reversal of 28049201 is 10294082.

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

It is a cyclic number.

It is not a de Polignac number, because 28049201 - 2¹⁴ = 28032817 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (28049209) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18455 + ... + 19916.

It is an arithmetic number, because the mean of its divisors is an integer number (3798828).

Almost surely, 2^28049201 is an apocalyptic number.

It is an amenable number.

28049201 is a deficient number, since it is larger than the sum of its proper divisors (2341423).

28049201 is a wasteful number, since it uses less digits than its factorization.

28049201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38431.

The product of its (nonzero) digits is 1152, while the sum is 26.

The square root of 28049201 is about 5296.1496391246. The cubic root of 28049201 is about 303.8366540804.

The spelling of 28049201 in words is "twenty-eight million, forty-nine thousand, two hundred one".