235430431 has 4 divisors (see below), whose sum is σ = 235463200. Its totient is φ = 235397664.

The previous prime is 235430411. The next prime is 235430443. The reversal of 235430431 is 134034532.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 235430431 - 2⁷ = 235430303 is a prime.

It is a super-2 number, since 2×235430431² = 110854975681691522, 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 = 235430396 and 235430405.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (235430401) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 426 + ... + 21703.

It is an arithmetic number, because the mean of its divisors is an integer number (58865800).

Almost surely, 2^235430431 is an apocalyptic number.

235430431 is a deficient number, since it is larger than the sum of its proper divisors (32769).

235430431 is a wasteful number, since it uses less digits than its factorization.

235430431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32768.

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

The square root of 235430431 is about 15343.7424052934. The cubic root of 235430431 is about 617.4771143316.

Adding to 235430431 its reverse (134034532), we get a palindrome (369464963).

The spelling of 235430431 in words is "two hundred thirty-five million, four hundred thirty thousand, four hundred thirty-one".