226591400000 has 672 divisors, whose sum is σ = 694899523584. Its totient is φ = 71596800000.

The previous prime is 226591399987. The next prime is 226591400003. The reversal of 226591400000 is 4195622.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (226591400003) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 998199887 + ... + 998200113.

It is an arithmetic number, because the mean of its divisors is an integer number (1034076672).

Almost surely, 2^226591400000 is an apocalyptic number.

226591400000 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 226591400000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (347449761792).

226591400000 is an abundant number, since it is smaller than the sum of its proper divisors (468308123584).

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

226591400000 is an equidigital number, since it uses as much as digits as its factorization.

226591400000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 325 (or 295 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 29.

Adding to 226591400000 its reverse (4195622), we get a palindrome (226595595622).

The spelling of 226591400000 in words is "two hundred twenty-six billion, five hundred ninety-one million, four hundred thousand".