28314283428 has 48 divisors (see below), whose sum is σ = 77725488960. Its totient is φ = 8882911872.

The previous prime is 28314283427. The next prime is 28314283433. The reversal of 28314283428 is 82438241382.

28314283428 is a `hidden beast` number, since 2 + 8 + 3 + 142 + 83 + 428 = 666.

It is a super-2 number, since 2×28314283428² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (28314283421) 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 15 ways as a sum of consecutive naturals, for example, 7709026 + ... + 7712697.

It is an arithmetic number, because the mean of its divisors is an integer number (1619281020).

Almost surely, 2^28314283428 is an apocalyptic number.

It is an amenable number.

28314283428 is an abundant number, since it is smaller than the sum of its proper divisors (49411205532).

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

28314283428 is a wasteful number, since it uses less digits than its factorization.

28314283428 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15421753 (or 15421745 counting only the distinct ones).

The product of its digits is 589824, while the sum is 45.

The spelling of 28314283428 in words is "twenty-eight billion, three hundred fourteen million, two hundred eighty-three thousand, four hundred twenty-eight".