28956614400 has 864 divisors, whose sum is σ = 124822010880. Its totient is φ = 6429818880.

The previous prime is 28956614399. The next prime is 28956614419. The reversal of 28956614400 is 441665982.

28956614400 is a `hidden beast` number, since 2 + 89 + 566 + 1 + 4 + 4 + 0 + 0 = 666.

It is a tau number, because it is divible by the number of its divisors (864).

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 95 ways as a sum of consecutive naturals, for example, 44754877 + ... + 44755523.

It is an arithmetic number, because the mean of its divisors is an integer number (144469920).

Almost surely, 2^28956614400 is an apocalyptic number.

28956614400 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 28956614400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (62411005440).

28956614400 is an abundant number, since it is smaller than the sum of its proper divisors (95865396480).

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

28956614400 is a wasteful number, since it uses less digits than its factorization.

28956614400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 726 (or 701 counting only the distinct ones).

The product of its (nonzero) digits is 414720, while the sum is 45.

The spelling of 28956614400 in words is "twenty-eight billion, nine hundred fifty-six million, six hundred fourteen thousand, four hundred".