28036886400 has 480 divisors, whose sum is σ = 108926789400. Its totient is φ = 7081758720.

The previous prime is 28036886399. The next prime is 28036886411. The reversal of 28036886400 is 468863082.

It is a happy number.

28036886400 is a `hidden beast` number, since 280 + 368 + 8 + 6 + 4 + 0 + 0 = 666.

It is a tau number, because it is divible by the number of its divisors (480).

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 59 ways as a sum of consecutive naturals, for example, 4921954 + ... + 4927646.

Almost surely, 2^28036886400 is an apocalyptic number.

28036886400 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 28036886400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (54463394700).

28036886400 is an abundant number, since it is smaller than the sum of its proper divisors (80889903000).

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

28036886400 is a wasteful number, since it uses less digits than its factorization.

28036886400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5748 (or 5722 counting only the distinct ones).

The product of its (nonzero) digits is 442368, while the sum is 45.

The spelling of 28036886400 in words is "twenty-eight billion, thirty-six million, eight hundred eighty-six thousand, four hundred".