28036040448 has 144 divisors (see below), whose sum is σ = 80992894976. Its totient is φ = 8558161920.

The previous prime is 28036040443. The next prime is 28036040491. The reversal of 28036040448 is 84404063082.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28036040441) 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 in 15 ways as a sum of consecutive naturals, for example, 1256913 + ... + 1279023.

Almost surely, 2^28036040448 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 28036040448, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (40496447488).

28036040448 is an abundant number, since it is smaller than the sum of its proper divisors (52956854528).

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

28036040448 is a wasteful number, since it uses less digits than its factorization.

28036040448 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22270 (or 22256 counting only the distinct ones).

The product of its (nonzero) digits is 147456, while the sum is 39.

The spelling of 28036040448 in words is "twenty-eight billion, thirty-six million, forty thousand, four hundred forty-eight".