229394477 has 4 divisors (see below), whose sum is σ = 247040220. Its totient is φ = 211748736.

The previous prime is 229394471. The next prime is 229394489. The reversal of 229394477 is 774493922.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 56761156 + 172633321 = 7534^2 + 13139^2 .

It is a cyclic number.

It is not a de Polignac number, because 229394477 - 2¹⁰ = 229393453 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (229394471) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8822852 + ... + 8822877.

It is an arithmetic number, because the mean of its divisors is an integer number (61760055).

Almost surely, 2^229394477 is an apocalyptic number.

It is an amenable number.

229394477 is a deficient number, since it is larger than the sum of its proper divisors (17645743).

229394477 is a wasteful number, since it uses less digits than its factorization.

229394477 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17645742.

The product of its digits is 762048, while the sum is 47.

The square root of 229394477 is about 15145.7742291373. The cubic root of 229394477 is about 612.1544146295.

The spelling of 229394477 in words is "two hundred twenty-nine million, three hundred ninety-four thousand, four hundred seventy-seven".