226133388 has 144 divisors (see below), whose sum is σ = 667963296. Its totient is φ = 63866880.

The previous prime is 226133377. The next prime is 226133393. The reversal of 226133388 is 883331622.

226133388 is a `hidden beast` number, since 2 + 2 + 613 + 3 + 38 + 8 = 666.

226133388 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×226133388² = 102272618336717088, which contains 22 as substring.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 341778 + ... + 342438.

It is an arithmetic number, because the mean of its divisors is an integer number (4638634).

Almost surely, 2^226133388 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 226133388, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (333981648).

226133388 is an abundant number, since it is smaller than the sum of its proper divisors (441829908).

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

226133388 is a wasteful number, since it uses less digits than its factorization.

226133388 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 744 (or 739 counting only the distinct ones).

The product of its digits is 41472, while the sum is 36.

The square root of 226133388 is about 15037.7321428465. The cubic root of 226133388 is about 609.2397480341.

The spelling of 226133388 in words is "two hundred twenty-six million, one hundred thirty-three thousand, three hundred eighty-eight".