28904440982 has 24 divisors (see below), whose sum is σ = 45753722208. Its totient is φ = 13688402160.

The previous prime is 28904440949. The next prime is 28904440987.

28904440982 is nontrivially palindromic in base 10.

It is a super-2 number, since 2×28904440982² (a number of 22 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 28904440982.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28904440987) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 69653 + ... + 250320.

It is an arithmetic number, because the mean of its divisors is an integer number (1906405092).

Almost surely, 2^28904440982 is an apocalyptic number.

28904440982 is a deficient number, since it is larger than the sum of its proper divisors (16849281226).

28904440982 is a wasteful number, since it uses less digits than its factorization.

28904440982 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 320084 (or 320053 counting only the distinct ones).

The product of its (nonzero) digits is 1327104, while the sum is 50.

The spelling of 28904440982 in words is "twenty-eight billion, nine hundred four million, four hundred forty thousand, nine hundred eighty-two".