28346804020 has 48 divisors (see below), whose sum is σ = 65770403328. Its totient is φ = 10207746560.

The previous prime is 28346803993. The next prime is 28346804041. The reversal of 28346804020 is 2040864382.

It is a super-3 number, since 3×28346804020³ (a number of 32 digits) contains 333 as substring.

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, 1804636 + ... + 1820275.

It is an arithmetic number, because the mean of its divisors is an integer number (1370216736).

Almost surely, 2^28346804020 is an apocalyptic number.

28346804020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

28346804020 is an abundant number, since it is smaller than the sum of its proper divisors (37423599308).

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

28346804020 is a wasteful number, since it uses less digits than its factorization.

28346804020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3624960 (or 3624958 counting only the distinct ones).

The product of its (nonzero) digits is 73728, while the sum is 37.

The spelling of 28346804020 in words is "twenty-eight billion, three hundred forty-six million, eight hundred four thousand, twenty".