226927381 has 4 divisors (see below), whose sum is σ = 230647564. Its totient is φ = 223207200.

The previous prime is 226927331. The next prime is 226927403. The reversal of 226927381 is 183729622.

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 43758225 + 183169156 = 6615^2 + 13534^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-226927381 is a prime.

It is a super-2 number, since 2×226927381² = 102992072495038322, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (226927331) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1860000 + ... + 1860121.

It is an arithmetic number, because the mean of its divisors is an integer number (57661891).

Almost surely, 2^226927381 is an apocalyptic number.

It is an amenable number.

226927381 is a deficient number, since it is larger than the sum of its proper divisors (3720183).

226927381 is an equidigital number, since it uses as much as digits as its factorization.

226927381 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3720182.

The product of its digits is 72576, while the sum is 40.

The square root of 226927381 is about 15064.1090343903. The cubic root of 226927381 is about 609.9519634304.

The spelling of 226927381 in words is "two hundred twenty-six million, nine hundred twenty-seven thousand, three hundred eighty-one".