228026864040 has 128 divisors (see below), whose sum is σ = 714580496640. Its totient is φ = 58101671936.

The previous prime is 228026864003. The next prime is 228026864041. The reversal of 228026864040 is 40468620822.

It is a junction number, because it is equal to n+sod(n) for n = 228026863983 and 228026864001.

It is not an unprimeable number, because it can be changed into a prime (228026864041) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2586934 + ... + 2673626.

It is an arithmetic number, because the mean of its divisors is an integer number (5582660130).

Almost surely, 2^228026864040 is an apocalyptic number.

228026864040 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 228026864040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (357290248320).

228026864040 is an abundant number, since it is smaller than the sum of its proper divisors (486553632600).

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

228026864040 is a wasteful number, since it uses less digits than its factorization.

228026864040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 87683 (or 87679 counting only the distinct ones).

The product of its (nonzero) digits is 294912, while the sum is 42.

The spelling of 228026864040 in words is "two hundred twenty-eight billion, twenty-six million, eight hundred sixty-four thousand, forty".