226921609 has 8 divisors (see below), whose sum is σ = 232709760. Its totient is φ = 221205600.

The previous prime is 226921589. The next prime is 226921631. The reversal of 226921609 is 906129622.

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

It is a cyclic number.

It is not a de Polignac number, because 226921609 - 2⁵ = 226921577 is a prime.

It is a super-2 number, since 2×226921609² = 102986833262297762, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (226921699) 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, 11637 + ... + 24274.

It is an arithmetic number, because the mean of its divisors is an integer number (29088720).

Almost surely, 2^226921609 is an apocalyptic number.

It is an amenable number.

226921609 is a deficient number, since it is larger than the sum of its proper divisors (5788151).

226921609 is an equidigital number, since it uses as much as digits as its factorization.

226921609 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36071.

The product of its (nonzero) digits is 23328, while the sum is 37.

The square root of 226921609 is about 15063.9174519778. The cubic root of 226921609 is about 609.9467919191.

The spelling of 226921609 in words is "two hundred twenty-six million, nine hundred twenty-one thousand, six hundred nine".