28070044 has 6 divisors (see below), whose sum is σ = 49122584. Its totient is φ = 14035020.

The previous prime is 28069997. The next prime is 28070047. The reversal of 28070044 is 44007082.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28070047) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3508752 + ... + 3508759.

Almost surely, 2^28070044 is an apocalyptic number.

It is an amenable number.

28070044 is a deficient number, since it is larger than the sum of its proper divisors (21052540).

28070044 is a wasteful number, since it uses less digits than its factorization.

28070044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7017515 (or 7017513 counting only the distinct ones).

The product of its (nonzero) digits is 1792, while the sum is 25.

The square root of 28070044 is about 5298.1170240001. The cubic root of 28070044 is about 303.9118944815.

The spelling of 28070044 in words is "twenty-eight million, seventy thousand, forty-four".