234031421 has 8 divisors (see below), whose sum is σ = 260725080. Its totient is φ = 208579392.

The previous prime is 234031351. The next prime is 234031423. The reversal of 234031421 is 124130432.

It can be written as a sum of positive squares in 4 ways, for example, as 2656900 + 231374521 = 1630^2 + 15211^2 .

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 234031421 - 2²² = 229837117 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 234031393 and 234031402.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (234031423) 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, 310010 + ... + 310763.

It is an arithmetic number, because the mean of its divisors is an integer number (32590635).

Almost surely, 2^234031421 is an apocalyptic number.

It is an amenable number.

234031421 is a deficient number, since it is larger than the sum of its proper divisors (26693659).

234031421 is a wasteful number, since it uses less digits than its factorization.

234031421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 620815.

The product of its (nonzero) digits is 576, while the sum is 20.

The square root of 234031421 is about 15298.0855338176. The cubic root of 234031421 is about 616.2515952709.

Adding to 234031421 its reverse (124130432), we get a palindrome (358161853).

The spelling of 234031421 in words is "two hundred thirty-four million, thirty-one thousand, four hundred twenty-one".