228561408000 has 624 divisors, whose sum is σ = 831431190096. Its totient is φ = 60397977600.

The previous prime is 228561407999. The next prime is 228561408013. The reversal of 228561408000 is 804165822.

It can be written as a sum of positive squares in 8 ways, for example, as 36422959104 + 192138448896 = 190848^2 + 438336^2 .

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 889343872 + ... + 889344128.

It is an arithmetic number, because the mean of its divisors is an integer number (1332421779).

Almost surely, 2^228561408000 is an apocalyptic number.

228561408000 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 228561408000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (415715595048).

228561408000 is an abundant number, since it is smaller than the sum of its proper divisors (602869782096).

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

228561408000 is a wasteful number, since it uses less digits than its factorization.

228561408000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 495 (or 460 counting only the distinct ones).

The product of its (nonzero) digits is 30720, while the sum is 36.

The spelling of 228561408000 in words is "two hundred twenty-eight billion, five hundred sixty-one million, four hundred eight thousand".