234542321 has 8 divisors (see below), whose sum is σ = 252763560. Its totient is φ = 216346752.

The previous prime is 234542317. The next prime is 234542333. The reversal of 234542321 is 123245432.

It can be written as a sum of positive squares in 4 ways, for example, as 11458225 + 223084096 = 3385^2 + 14936^2 .

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 234542321 - 2² = 234542317 is a prime.

It is a super-4 number, since 4×234542321⁴ (a number of 35 digits) contains 4444 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (234542381) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15311 + ... + 26523.

It is an arithmetic number, because the mean of its divisors is an integer number (31595445).

Almost surely, 2^234542321 is an apocalyptic number.

It is an amenable number.

234542321 is a deficient number, since it is larger than the sum of its proper divisors (18221239).

234542321 is a wasteful number, since it uses less digits than its factorization.

234542321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12835.

The product of its digits is 5760, while the sum is 26.

The square root of 234542321 is about 15314.7745984066. The cubic root of 234542321 is about 616.6997033514.

Adding to 234542321 its reverse (123245432), we get a palindrome (357787753).

The spelling of 234542321 in words is "two hundred thirty-four million, five hundred forty-two thousand, three hundred twenty-one".