231340634 has 32 divisors (see below), whose sum is σ = 402330240. Its totient is φ = 97720128.

The previous prime is 231340633. The next prime is 231340643. The reversal of 231340634 is 436043132.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (231340633) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 582524 + ... + 582920.

It is an arithmetic number, because the mean of its divisors is an integer number (12572820).

Almost surely, 2^231340634 is an apocalyptic number.

231340634 is a deficient number, since it is larger than the sum of its proper divisors (170989606).

231340634 is a wasteful number, since it uses less digits than its factorization.

231340634 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 902.

The product of its (nonzero) digits is 5184, while the sum is 26.

The square root of 231340634 is about 15209.8860613747. The cubic root of 231340634 is about 613.8806917331.

Adding to 231340634 its reverse (436043132), we get a palindrome (667383766).

The spelling of 231340634 in words is "two hundred thirty-one million, three hundred forty thousand, six hundred thirty-four".