234728219 has 4 divisors (see below), whose sum is σ = 256067160. Its totient is φ = 213389280.

The previous prime is 234728191. The next prime is 234728227. The reversal of 234728219 is 912827432.

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

It is a cyclic number.

It is not a de Polignac number, because 234728219 - 2²⁴ = 217951003 is a prime.

It is a super-2 number, since 2×234728219² = 110194673589823922, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (234728419) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10669454 + ... + 10669475.

It is an arithmetic number, because the mean of its divisors is an integer number (64016790).

Almost surely, 2^234728219 is an apocalyptic number.

234728219 is a deficient number, since it is larger than the sum of its proper divisors (21338941).

234728219 is a wasteful number, since it uses less digits than its factorization.

234728219 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21338940.

The product of its digits is 48384, while the sum is 38.

The square root of 234728219 is about 15320.8426334846. The cubic root of 234728219 is about 616.8625921719.

The spelling of 234728219 in words is "two hundred thirty-four million, seven hundred twenty-eight thousand, two hundred nineteen".