231432430 has 16 divisors (see below), whose sum is σ = 416888064. Its totient is φ = 92504160.

The previous prime is 231432427. The next prime is 231432431. The reversal of 231432430 is 34234132.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (231432431) 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, 6844 + ... + 22576.

It is an arithmetic number, because the mean of its divisors is an integer number (26055504).

Almost surely, 2^231432430 is an apocalyptic number.

231432430 is a deficient number, since it is larger than the sum of its proper divisors (185455634).

231432430 is a wasteful number, since it uses less digits than its factorization.

231432430 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17211.

The product of its (nonzero) digits is 1728, while the sum is 22.

The square root of 231432430 is about 15212.9034046759. The cubic root of 231432430 is about 613.9618769810.

Adding to 231432430 its reverse (34234132), we get a palindrome (265666562).

The spelling of 231432430 in words is "two hundred thirty-one million, four hundred thirty-two thousand, four hundred thirty".