231444634 has 16 divisors (see below), whose sum is σ = 349835616. Its totient is φ = 114836400.

The previous prime is 231444617. The next prime is 231444659. The reversal of 231444634 is 436444132.

231444634 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 231444596 and 231444605.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 206644 + ... + 207760.

It is an arithmetic number, because the mean of its divisors is an integer number (21864726).

Almost surely, 2^231444634 is an apocalyptic number.

231444634 is a deficient number, since it is larger than the sum of its proper divisors (118390982).

231444634 is a wasteful number, since it uses less digits than its factorization.

231444634 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1821.

The product of its digits is 27648, while the sum is 31.

The square root of 231444634 is about 15213.3045062537. The cubic root of 231444634 is about 613.9726686968.

Adding to 231444634 its reverse (436444132), we get a palindrome (667888766).

The spelling of 231444634 in words is "two hundred thirty-one million, four hundred forty-four thousand, six hundred thirty-four".