226666819 has 8 divisors (see below), whose sum is σ = 232540560. Its totient is φ = 220809600.

The previous prime is 226666807. The next prime is 226666841. The reversal of 226666819 is 918666622.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 226666819 - 2¹¹ = 226664771 is a prime.

It is a super-2 number, since 2×226666819² = 102755693671157522, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (226666019) 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, 26559 + ... + 34039.

It is an arithmetic number, because the mean of its divisors is an integer number (29067570).

Almost surely, 2^226666819 is an apocalyptic number.

226666819 is a deficient number, since it is larger than the sum of its proper divisors (5873741).

226666819 is an equidigital number, since it uses as much as digits as its factorization.

226666819 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8261.

The product of its digits is 373248, while the sum is 46.

The square root of 226666819 is about 15055.4581132558. The cubic root of 226666819 is about 609.7184215069.

The spelling of 226666819 in words is "two hundred twenty-six million, six hundred sixty-six thousand, eight hundred nineteen".