229309405 has 16 divisors (see below), whose sum is σ = 296768304. Its totient is φ = 169090560.

The previous prime is 229309373. The next prime is 229309427. The reversal of 229309405 is 504903922.

It can be written as a sum of positive squares in 8 ways, for example, as 29398084 + 199911321 = 5422^2 + 14139^2 .

It is not a de Polignac number, because 229309405 - 2⁵ = 229309373 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 51217 + ... + 55513.

It is an arithmetic number, because the mean of its divisors is an integer number (18548019).

Almost surely, 2^229309405 is an apocalyptic number.

It is an amenable number.

229309405 is a deficient number, since it is larger than the sum of its proper divisors (67458899).

229309405 is a wasteful number, since it uses less digits than its factorization.

229309405 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5136.

The product of its (nonzero) digits is 19440, while the sum is 34.

The square root of 229309405 is about 15142.9655285879. The cubic root of 229309405 is about 612.0787318434.

The spelling of 229309405 in words is "two hundred twenty-nine million, three hundred nine thousand, four hundred five".