229613409 has 9 divisors (see below), whose sum is σ = 331729489. Its totient is φ = 153045300.

The previous prime is 229613383. The next prime is 229613411. The reversal of 229613409 is 904316922.

The square root of 229613409 is 15153.

It is a perfect power (a square), and thus also a powerful number.

It is a tau number, because it is divible by the number of its divisors (9).

It is not a de Polignac number, because 229613409 - 2¹³ = 229605217 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (229613429) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 42934 + ... + 47984.

Almost surely, 2^229613409 is an apocalyptic number.

229613409 is the 15153-rd square number.

229613409 is the 7577-th centered octagonal number.

It is an amenable number.

229613409 is a deficient number, since it is larger than the sum of its proper divisors (102116080).

229613409 is an frugal number, since it uses more digits than its factorization.

229613409 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10108 (or 5054 counting only the distinct ones).

The product of its (nonzero) digits is 23328, while the sum is 36.

The cubic root of 229613409 is about 612.3490975744.

Multiplying 229613409 by its sum of digits (36), we get a square (8266082724 = 90918²).

The spelling of 229613409 in words is "two hundred twenty-nine million, six hundred thirteen thousand, four hundred nine".