28030084416 has 42 divisors (see below), whose sum is σ = 80343177642. Its totient is φ = 9343361280.

The previous prime is 28030084409. The next prime is 28030084573. The reversal of 28030084416 is 61448003082.

It can be written as a sum of positive squares in only one way, i.e., 20419266816 + 7610817600 = 142896^2 + 87240^2 .

It is a super-2 number, since 2×28030084416² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 24331095 + ... + 24332246.

It is an arithmetic number, because the mean of its divisors is an integer number (1912932801).

Almost surely, 2^28030084416 is an apocalyptic number.

It is an amenable number.

28030084416 is an abundant number, since it is smaller than the sum of its proper divisors (52313093226).

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

28030084416 is a wasteful number, since it uses less digits than its factorization.

28030084416 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48663359 (or 48663346 counting only the distinct ones).

The product of its (nonzero) digits is 36864, while the sum is 36.

Adding to 28030084416 its reverse (61448003082), we get a palindrome (89478087498).

The spelling of 28030084416 in words is "twenty-eight billion, thirty million, eighty-four thousand, four hundred sixteen".