234344421 has 20 divisors (see below), whose sum is σ = 359536012. Its totient is φ = 152005248.

The previous prime is 234344377. The next prime is 234344449. The reversal of 234344421 is 124443432.

It is a happy number.

234344421 is a `hidden beast` number, since 234 + 3 + 4 + 4 + 421 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 89984196 + 144360225 = 9486^2 + 12015^2 .

It is not a de Polignac number, because 234344421 - 2¹⁵ = 234311653 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (234344471) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 36100 + ... + 42093.

Almost surely, 2^234344421 is an apocalyptic number.

It is an amenable number.

234344421 is a deficient number, since it is larger than the sum of its proper divisors (125191591).

234344421 is an equidigital number, since it uses as much as digits as its factorization.

234344421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 78242 (or 78233 counting only the distinct ones).

The product of its digits is 9216, while the sum is 27.

The square root of 234344421 is about 15308.3121538594. The cubic root of 234344421 is about 616.5262034434.

Adding to 234344421 its reverse (124443432), we get a palindrome (358787853).

It can be divided in two parts, 2343 and 44421, that added together give a palindrome (46764).

The spelling of 234344421 in words is "two hundred thirty-four million, three hundred forty-four thousand, four hundred twenty-one".