234431429 has 8 divisors (see below), whose sum is σ = 237507480. Its totient is φ = 231365376.

The previous prime is 234431413. The next prime is 234431437. The reversal of 234431429 is 924134432.

It can be written as a sum of positive squares in 4 ways, for example, as 3330625 + 231100804 = 1825^2 + 15202^2 .

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 234431429 - 2⁴ = 234431413 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 234431395 and 234431404.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (234431129) 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, 52409 + ... + 56705.

It is an arithmetic number, because the mean of its divisors is an integer number (29688435).

Almost surely, 2^234431429 is an apocalyptic number.

It is an amenable number.

234431429 is a deficient number, since it is larger than the sum of its proper divisors (3076051).

234431429 is an equidigital number, since it uses as much as digits as its factorization.

234431429 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4999.

The product of its digits is 20736, while the sum is 32.

The square root of 234431429 is about 15311.1537449011. The cubic root of 234431429 is about 616.6024958142.

The spelling of 234431429 in words is "two hundred thirty-four million, four hundred thirty-one thousand, four hundred twenty-nine".