232400431 has 2 divisors, whose sum is σ = 232400432. Its totient is φ = 232400430.

The previous prime is 232400417. The next prime is 232400437. The reversal of 232400431 is 134004232.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 232400431 - 2¹³ = 232392239 is a prime.

It is a super-2 number, since 2×232400431² = 108019920657971522, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 232400399 and 232400408.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (232400437) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 116200215 + 116200216.

It is an arithmetic number, because the mean of its divisors is an integer number (116200216).

Almost surely, 2^232400431 is an apocalyptic number.

232400431 is a deficient number, since it is larger than the sum of its proper divisors (1).

232400431 is an equidigital number, since it uses as much as digits as its factorization.

232400431 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 576, while the sum is 19.

The square root of 232400431 is about 15244.6853362082. The cubic root of 232400431 is about 614.8166823137.

Adding to 232400431 its reverse (134004232), we get a palindrome (366404663).

The spelling of 232400431 in words is "two hundred thirty-two million, four hundred thousand, four hundred thirty-one".