234428605 has 8 divisors (see below), whose sum is σ = 291015000. Its totient is φ = 181075776.

The previous prime is 234428599. The next prime is 234428609. The reversal of 234428605 is 506824432.

It can be written as a sum of positive squares in 4 ways, for example, as 41718681 + 192709924 = 6459^2 + 13882^2 .

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 234428605 - 2⁵ = 234428573 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (234428609) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 808230 + ... + 808519.

It is an arithmetic number, because the mean of its divisors is an integer number (36376875).

Almost surely, 2^234428605 is an apocalyptic number.

It is an amenable number.

234428605 is a deficient number, since it is larger than the sum of its proper divisors (56586395).

234428605 is a wasteful number, since it uses less digits than its factorization.

234428605 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1616783.

The product of its (nonzero) digits is 46080, while the sum is 34.

The square root of 234428605 is about 15311.0615242706. The cubic root of 234428605 is about 616.6000199055.

The spelling of 234428605 in words is "two hundred thirty-four million, four hundred twenty-eight thousand, six hundred five".