28303995304800 has 180 divisors, whose sum is σ = 103219167558276. Its totient is φ = 7547732064000.

The previous prime is 28303995304789. The next prime is 28303995304831. The reversal of 28303995304800 is 840359930382.

It is a happy number.

28303995304800 is a `hidden beast` number, since 2 + 8 + 30 + 39 + 9 + 530 + 48 + 0 + 0 = 666.

It is a tau number, because it is divible by the number of its divisors (180).

It is a super-2 number, since 2×28303995304800² (a number of 28 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 29 ways as a sum of consecutive naturals, for example, 218330226 + ... + 218459825.

Almost surely, 2^{28303995304800} is an apocalyptic number.

28303995304800 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

28303995304800 is an abundant number, since it is smaller than the sum of its proper divisors (74915172253476).

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

28303995304800 is a wasteful number, since it uses less digits than its factorization.

28303995304800 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 436790083 (or 436790061 counting only the distinct ones).

The product of its (nonzero) digits is 5598720, while the sum is 54.

The spelling of 28303995304800 in words is "twenty-eight trillion, three hundred three billion, nine hundred ninety-five million, three hundred four thousand, eight hundred".