226820916 has 72 divisors (see below), whose sum is σ = 656894784. Its totient is φ = 64644480.

The previous prime is 226820911. The next prime is 226820933. The reversal of 226820916 is 619028622.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (226820911) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 130936 + ... + 132656.

Almost surely, 2^226820916 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 226820916, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (328447392).

226820916 is an abundant number, since it is smaller than the sum of its proper divisors (430073868).

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

226820916 is a wasteful number, since it uses less digits than its factorization.

226820916 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2261 (or 2256 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 36.

The square root of 226820916 is about 15060.5748894257. The cubic root of 226820916 is about 609.8565603788.

The spelling of 226820916 in words is "two hundred twenty-six million, eight hundred twenty thousand, nine hundred sixteen".