226520064 has 110 divisors (see below), whose sum is σ = 676680884. Its totient is φ = 75479040.

The previous prime is 226520027. The next prime is 226520089. The reversal of 226520064 is 460025622.

226520064 is a `hidden beast` number, since 2 + 2 + 652 + 0 + 0 + 6 + 4 = 666.

It is a super-2 number, since 2×226520064² = 102622678789128192, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an unprimeable number.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 81579 + ... + 84309.

Almost surely, 2^226520064 is an apocalyptic number.

226520064 is a gapful number since it is divisible by the number (24) 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 226520064, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (338340442).

226520064 is an abundant number, since it is smaller than the sum of its proper divisors (450160820).

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

226520064 is an equidigital number, since it uses as much as digits as its factorization.

226520064 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2763 (or 2736 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 27.

The square root of 226520064 is about 15050.5835102829. The cubic root of 226520064 is about 609.5868060881.

Adding to 226520064 its reverse (460025622), we get a palindrome (686545686).

The spelling of 226520064 in words is "two hundred twenty-six million, five hundred twenty thousand, sixty-four".