28366420334 has 32 divisors (see below), whose sum is σ = 49568034240. Its totient is φ = 11922273792.

The previous prime is 28366420309. The next prime is 28366420343. The reversal of 28366420334 is 43302466382.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 28366420291 and 28366420300.

It is a congruent number.

It is an unprimeable number.

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, 1928552 + ... + 1943204.

It is an arithmetic number, because the mean of its divisors is an integer number (1549001070).

Almost surely, 2^28366420334 is an apocalyptic number.

28366420334 is a deficient number, since it is larger than the sum of its proper divisors (21201613906).

28366420334 is a wasteful number, since it uses less digits than its factorization.

28366420334 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17324.

The product of its (nonzero) digits is 497664, while the sum is 41.

The spelling of 28366420334 in words is "twenty-eight billion, three hundred sixty-six million, four hundred twenty thousand, three hundred thirty-four".