28460488400 has 120 divisors (see below), whose sum is σ = 68978335104. Its totient is φ = 11284480000.

The previous prime is 28460488387. The next prime is 28460488471. The reversal of 28460488400 is 488406482.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 25802249 + ... + 25803351.

Almost surely, 2^28460488400 is an apocalyptic number.

28460488400 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 28460488400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (34489167552).

28460488400 is an abundant number, since it is smaller than the sum of its proper divisors (40517846704).

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

28460488400 is a wasteful number, since it uses less digits than its factorization.

28460488400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1629 (or 1618 counting only the distinct ones).

The product of its (nonzero) digits is 393216, while the sum is 44.

The spelling of 28460488400 in words is "twenty-eight billion, four hundred sixty million, four hundred eighty-eight thousand, four hundred".