226821546 has 96 divisors (see below), whose sum is σ = 592545408. Its totient is φ = 63685440.

The previous prime is 226821521. The next prime is 226821589. The reversal of 226821546 is 645128622.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 226821546.

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, 206976 + ... + 208068.

It is an arithmetic number, because the mean of its divisors is an integer number (6172348).

Almost surely, 2^226821546 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 226821546, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (296272704).

226821546 is an abundant number, since it is smaller than the sum of its proper divisors (365723862).

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

226821546 is a wasteful number, since it uses less digits than its factorization.

226821546 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1178 (or 1166 counting only the distinct ones).

The product of its digits is 46080, while the sum is 36.

The square root of 226821546 is about 15060.5958049474. The cubic root of 226821546 is about 609.8571250082.

The spelling of 226821546 in words is "two hundred twenty-six million, eight hundred twenty-one thousand, five hundred forty-six".