228003391782408 has 512 divisors, whose sum is σ = 647596878888960. Its totient is φ = 66297862471680.

The previous prime is 228003391782377. The next prime is 228003391782421. The reversal of 228003391782408 is 804287193300822.

It is an unprimeable number.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 187348719016 + ... + 187348720232.

It is an arithmetic number, because the mean of its divisors is an integer number (1264837654080).

Almost surely, 2^{228003391782408} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 228003391782408, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (323798439444480).

228003391782408 is an abundant number, since it is smaller than the sum of its proper divisors (419593487106552).

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

228003391782408 is a wasteful number, since it uses less digits than its factorization.

228003391782408 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2529 (or 2525 counting only the distinct ones).

The product of its (nonzero) digits is 9289728, while the sum is 57.

The spelling of 228003391782408 in words is "two hundred twenty-eight trillion, three billion, three hundred ninety-one million, seven hundred eighty-two thousand, four hundred eight".