28244706 has 16 divisors (see below), whose sum is σ = 64559424. Its totient is φ = 8069904.

The previous prime is 28244693. The next prime is 28244717. The reversal of 28244706 is 60744282.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 336205 + ... + 336288.

It is an arithmetic number, because the mean of its divisors is an integer number (4034964).

Almost surely, 2^28244706 is an apocalyptic number.

28244706 is an abundant number, since it is smaller than the sum of its proper divisors (36314718).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

28244706 is a wasteful number, since it uses less digits than its factorization.

28244706 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 672505.

The product of its (nonzero) digits is 21504, while the sum is 33.

The square root of 28244706 is about 5314.5748654055. The cubic root of 28244706 is about 304.5409415912.

Adding to 28244706 its reverse (60744282), we get a palindrome (88988988).

The spelling of 28244706 in words is "twenty-eight million, two hundred forty-four thousand, seven hundred six".