231402430 has 16 divisors (see below), whose sum is σ = 476028000. Its totient is φ = 79337952.

The previous prime is 231402427. The next prime is 231402467. The reversal of 231402430 is 34204132.

It is a junction number, because it is equal to n+sod(n) for n = 231402398 and 231402407.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1652805 + ... + 1652944.

It is an arithmetic number, because the mean of its divisors is an integer number (29751750).

Almost surely, 2^231402430 is an apocalyptic number.

231402430 is an abundant number, since it is smaller than the sum of its proper divisors (244625570).

231402430 is a wasteful number, since it uses less digits than its factorization.

231402430 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3305763.

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

The square root of 231402430 is about 15211.9173676430. The cubic root of 231402430 is about 613.9353470600.

Adding to 231402430 its reverse (34204132), we get a palindrome (265606562).

The spelling of 231402430 in words is "two hundred thirty-one million, four hundred two thousand, four hundred thirty".