28444408042 has 8 divisors (see below), whose sum is σ = 43206696000. Its totient is φ = 14042176044.

The previous prime is 28444408021. The next prime is 28444408043. The reversal of 28444408042 is 24080444482.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 28444407986 and 28444408004.

It is not an unprimeable number, because it can be changed into a prime (28444408043) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 90013792 + ... + 90014107.

It is an arithmetic number, because the mean of its divisors is an integer number (5400837000).

Almost surely, 2^28444408042 is an apocalyptic number.

28444408042 is a deficient number, since it is larger than the sum of its proper divisors (14762287958).

28444408042 is a wasteful number, since it uses less digits than its factorization.

28444408042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 180027980.

The product of its (nonzero) digits is 262144, while the sum is 40.

The spelling of 28444408042 in words is "twenty-eight billion, four hundred forty-four million, four hundred eight thousand, forty-two".