234824221 has 4 divisors (see below), whose sum is σ = 235937344. Its totient is φ = 233711100.

The previous prime is 234824207. The next prime is 234824297. The reversal of 234824221 is 122428432.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-234824221 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 234824221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (234824201) 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 3 ways as a sum of consecutive naturals, for example, 556245 + ... + 556666.

It is an arithmetic number, because the mean of its divisors is an integer number (58984336).

Almost surely, 2^234824221 is an apocalyptic number.

It is an amenable number.

234824221 is a deficient number, since it is larger than the sum of its proper divisors (1113123).

234824221 is a wasteful number, since it uses less digits than its factorization.

234824221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1113122.

The product of its digits is 6144, while the sum is 28.

The square root of 234824221 is about 15323.9753654200. The cubic root of 234824221 is about 616.9466780297.

It can be divided in two parts, 2348 and 24221, that added together give a square (26569 = 163²).

The spelling of 234824221 in words is "two hundred thirty-four million, eight hundred twenty-four thousand, two hundred twenty-one".