28448234 has 4 divisors (see below), whose sum is σ = 42672354. Its totient is φ = 14224116.

The previous prime is 28448213. The next prime is 28448261. The reversal of 28448234 is 43284482.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 24970009 + 3478225 = 4997^2 + 1865^2 .

It is a junction number, because it is equal to n+sod(n) for n = 28448194 and 28448203.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7112057 + ... + 7112060.

Almost surely, 2^28448234 is an apocalyptic number.

28448234 is a deficient number, since it is larger than the sum of its proper divisors (14224120).

28448234 is a wasteful number, since it uses less digits than its factorization.

28448234 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14224119.

The product of its digits is 49152, while the sum is 35.

The square root of 28448234 is about 5333.6885923346. The cubic root of 28448234 is about 305.2706868650.

It can be divided in two parts, 28448 and 234, that added together give a palindrome (28682).

The spelling of 28448234 in words is "twenty-eight million, four hundred forty-eight thousand, two hundred thirty-four".