226218648 has 32 divisors (see below), whose sum is σ = 579342960. Its totient is φ = 73566720.

The previous prime is 226218613. The next prime is 226218649. The reversal of 226218648 is 846812622.

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (226218649) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 113965 + ... + 115932.

Almost surely, 2^226218648 is an apocalyptic number.

It is an amenable number.

226218648 is an abundant number, since it is smaller than the sum of its proper divisors (353124312).

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

226218648 is a wasteful number, since it uses less digits than its factorization.

226218648 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 229947 (or 229943 counting only the distinct ones).

The product of its digits is 73728, while the sum is 39.

The square root of 226218648 is about 15040.5667446410. The cubic root of 226218648 is about 609.3163064679.

It can be divided in two parts, 2262 and 18648, that added together give a triangular number (20910 = T₂₀₄).

The spelling of 226218648 in words is "two hundred twenty-six million, two hundred eighteen thousand, six hundred forty-eight".