229108409 has 12 divisors (see below), whose sum is σ = 237570432. Its totient is φ = 220846920.

The previous prime is 229108367. The next prime is 229108423. The reversal of 229108409 is 904801922.

It is not a de Polignac number, because 229108409 - 2¹² = 229104313 is a prime.

It is a super-2 number, since 2×229108409² = 104981326149022562, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (229108459) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 236444 + ... + 237410.

It is an arithmetic number, because the mean of its divisors is an integer number (19797536).

Almost surely, 2^229108409 is an apocalyptic number.

It is an amenable number.

229108409 is a deficient number, since it is larger than the sum of its proper divisors (8462023).

229108409 is an frugal number, since it uses more digits than its factorization.

229108409 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1156 (or 1085 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 35.

The square root of 229108409 is about 15136.3274607812. The cubic root of 229108409 is about 611.8998449528.

The spelling of 229108409 in words is "two hundred twenty-nine million, one hundred eight thousand, four hundred nine".