28044117344 has 48 divisors (see below), whose sum is σ = 58163212800. Its totient is φ = 13273663104.

The previous prime is 28044117331. The next prime is 28044117349. The reversal of 28044117344 is 44371144082.

It is a happy number.

It is a super-2 number, since 2×28044117344² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (38).

It is a junction number, because it is equal to n+sod(n) for n = 28044117298 and 28044117307.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28044117349) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 789437 + ... + 824195.

It is an arithmetic number, because the mean of its divisors is an integer number (1211733600).

Almost surely, 2^28044117344 is an apocalyptic number.

It is an amenable number.

28044117344 is an abundant number, since it is smaller than the sum of its proper divisors (30119095456).

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

28044117344 is a wasteful number, since it uses less digits than its factorization.

28044117344 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36115 (or 36107 counting only the distinct ones).

The product of its (nonzero) digits is 86016, while the sum is 38.

The spelling of 28044117344 in words is "twenty-eight billion, forty-four million, one hundred seventeen thousand, three hundred forty-four".