28402800404 has 24 divisors (see below), whose sum is σ = 54334004256. Its totient is φ = 12884060000.

The previous prime is 28402800403. The next prime is 28402800443. The reversal of 28402800404 is 40400820482.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28402800403) 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 7 ways as a sum of consecutive naturals, for example, 635747 + ... + 678954.

It is an arithmetic number, because the mean of its divisors is an integer number (2263916844).

Almost surely, 2^28402800404 is an apocalyptic number.

It is an amenable number.

28402800404 is a deficient number, since it is larger than the sum of its proper divisors (25931203852).

28402800404 is a wasteful number, since it uses less digits than its factorization.

28402800404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1315207 (or 1315205 counting only the distinct ones).

The product of its (nonzero) digits is 16384, while the sum is 32.

The spelling of 28402800404 in words is "twenty-eight billion, four hundred two million, eight hundred thousand, four hundred four".