226640329 has 4 divisors (see below), whose sum is σ = 226751940. Its totient is φ = 226528720.

The previous prime is 226640327. The next prime is 226640339. The reversal of 226640329 is 923046622.

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 30780304 + 195860025 = 5548^2 + 13995^2 .

It is a cyclic number.

It is not a de Polignac number, because 226640329 - 2¹ = 226640327 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 226640294 and 226640303.

It is not an unprimeable number, because it can be changed into a prime (226640327) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 52702 + ... + 56839.

It is an arithmetic number, because the mean of its divisors is an integer number (56687985).

Almost surely, 2^226640329 is an apocalyptic number.

It is an amenable number.

226640329 is a deficient number, since it is larger than the sum of its proper divisors (111611).

226640329 is a wasteful number, since it uses less digits than its factorization.

226640329 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 111610.

The product of its (nonzero) digits is 31104, while the sum is 34.

The square root of 226640329 is about 15054.5783401595. The cubic root of 226640329 is about 609.6946684784.

The spelling of 226640329 in words is "two hundred twenty-six million, six hundred forty thousand, three hundred twenty-nine".