28039384350 has 72 divisors (see below), whose sum is σ = 79763823360. Its totient is φ = 7037333760.

The previous prime is 28039384327. The next prime is 28039384357. The reversal of 28039384350 is 5348393082.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a junction number, because it is equal to n+sod(n) for n = 28039384296 and 28039384305.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28039384357) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 1824990 + ... + 1840289.

It is an arithmetic number, because the mean of its divisors is an integer number (1107830880).

Almost surely, 2^28039384350 is an apocalyptic number.

28039384350 is an abundant number, since it is smaller than the sum of its proper divisors (51724439010).

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

28039384350 is a wasteful number, since it uses less digits than its factorization.

28039384350 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3665314 (or 3665306 counting only the distinct ones).

The product of its (nonzero) digits is 622080, while the sum is 45.

The spelling of 28039384350 in words is "twenty-eight billion, thirty-nine million, three hundred eighty-four thousand, three hundred fifty".