234305431 has 8 divisors (see below), whose sum is σ = 238210560. Its totient is φ = 230426232.

The previous prime is 234305429. The next prime is 234305443. The reversal of 234305431 is 134503432.

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 234305431 - 2¹ = 234305429 is a prime.

It is a super-2 number, since 2×234305431² = 109798069992191522, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 234305396 and 234305405.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (234305411) 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, 12180 + ... + 24838.

It is an arithmetic number, because the mean of its divisors is an integer number (29776320).

Almost surely, 2^234305431 is an apocalyptic number.

234305431 is a deficient number, since it is larger than the sum of its proper divisors (3905129).

234305431 is a wasteful number, since it uses less digits than its factorization.

234305431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12965.

The product of its (nonzero) digits is 4320, while the sum is 25.

The square root of 234305431 is about 15307.0386097377. The cubic root of 234305431 is about 616.4920092008.

Adding to 234305431 its reverse (134503432), we get a palindrome (368808863).

The spelling of 234305431 in words is "two hundred thirty-four million, three hundred five thousand, four hundred thirty-one".