226341821 has 4 divisors (see below), whose sum is σ = 226470972. Its totient is φ = 226212672.

The previous prime is 226341811. The next prime is 226341883. The reversal of 226341821 is 128143622.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 82101721 + 144240100 = 9061^2 + 12010^2 .

It is a cyclic number.

It is not a de Polignac number, because 226341821 - 2¹⁸ = 226079677 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (226341811) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 61910 + ... + 65463.

It is an arithmetic number, because the mean of its divisors is an integer number (56617743).

Almost surely, 2^226341821 is an apocalyptic number.

It is an amenable number.

226341821 is a deficient number, since it is larger than the sum of its proper divisors (129151).

226341821 is a wasteful number, since it uses less digits than its factorization.

226341821 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 129150.

The product of its digits is 4608, while the sum is 29.

The square root of 226341821 is about 15044.6608801927. The cubic root of 226341821 is about 609.4268745706.

The spelling of 226341821 in words is "two hundred twenty-six million, three hundred forty-one thousand, eight hundred twenty-one".