228482591040 has 672 divisors, whose sum is σ = 873680670720. Its totient is φ = 54344908800.

The previous prime is 228482591033. The next prime is 228482591059. The reversal of 228482591040 is 40195284822.

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, 438545980 + ... + 438546500.

Almost surely, 2^228482591040 is an apocalyptic number.

228482591040 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 228482591040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (436840335360).

228482591040 is an abundant number, since it is smaller than the sum of its proper divisors (645198079680).

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

228482591040 is a wasteful number, since it uses less digits than its factorization.

228482591040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 791 (or 778 counting only the distinct ones).

The product of its (nonzero) digits is 368640, while the sum is 45.

The spelling of 228482591040 in words is "two hundred twenty-eight billion, four hundred eighty-two million, five hundred ninety-one thousand, forty".