226290261 has 32 divisors (see below), whose sum is σ = 326043648. Its totient is φ = 139233600.

The previous prime is 226290227. The next prime is 226290269. The reversal of 226290261 is 162092622.

It is not a de Polignac number, because 226290261 - 2¹⁰ = 226289237 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (226290269) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 385210 + ... + 385796.

It is an arithmetic number, because the mean of its divisors is an integer number (10188864).

Almost surely, 2^226290261 is an apocalyptic number.

It is an amenable number.

226290261 is a deficient number, since it is larger than the sum of its proper divisors (99753387).

226290261 is a wasteful number, since it uses less digits than its factorization.

226290261 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 801.

The product of its (nonzero) digits is 5184, while the sum is 30.

The square root of 226290261 is about 15042.9472178825. The cubic root of 226290261 is about 609.3805958408.

The spelling of 226290261 in words is "two hundred twenty-six million, two hundred ninety thousand, two hundred sixty-one".