28044006 has 16 divisors (see below), whose sum is σ = 56878848. Its totient is φ = 9216200.

The previous prime is 28043993. The next prime is 28044011. The reversal of 28044006 is 60044082.

It is a congruent number.

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, 32490 + ... + 33341.

It is an arithmetic number, because the mean of its divisors is an integer number (3554928).

Almost surely, 2^28044006 is an apocalyptic number.

28044006 is an abundant number, since it is smaller than the sum of its proper divisors (28834842).

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

28044006 is a wasteful number, since it uses less digits than its factorization.

28044006 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65907.

The product of its (nonzero) digits is 1536, while the sum is 24.

The square root of 28044006 is about 5295.6591657696. The cubic root of 28044006 is about 303.8178950329.

Adding to 28044006 its reverse (60044082), we get a palindrome (88088088).

The spelling of 28044006 in words is "twenty-eight million, forty-four thousand, six".