28352049 has 16 divisors (see below), whose sum is σ = 41338560. Its totient is φ = 17141760.

The previous prime is 28352029. The next prime is 28352059. The reversal of 28352049 is 94025382.

It is a happy number.

It is not a de Polignac number, because 28352049 - 2⁹ = 28351537 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (28352029) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 18297 + ... + 19785.

It is an arithmetic number, because the mean of its divisors is an integer number (2583660).

Almost surely, 2^28352049 is an apocalyptic number.

It is an amenable number.

28352049 is a deficient number, since it is larger than the sum of its proper divisors (12986511).

28352049 is a wasteful number, since it uses less digits than its factorization.

28352049 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2080.

The product of its (nonzero) digits is 17280, while the sum is 33.

The square root of 28352049 is about 5324.6642147651. The cubic root of 28352049 is about 304.9262528856.

It can be divided in two parts, 2835 and 2049, that added together give a palindrome (4884).

The spelling of 28352049 in words is "twenty-eight million, three hundred fifty-two thousand, forty-nine".