231434404 has 12 divisors (see below), whose sum is σ = 405402928. Its totient is φ = 115605000.

The previous prime is 231434387. The next prime is 231434407. The reversal of 231434404 is 404434132.

231434404 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a hoax number, since the sum of its digits (25) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (231434407) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 23322 + ... + 31729.

Almost surely, 2^231434404 is an apocalyptic number.

It is an amenable number.

231434404 is a deficient number, since it is larger than the sum of its proper divisors (173968524).

231434404 is a wasteful number, since it uses less digits than its factorization.

231434404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56106 (or 56104 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 25.

The square root of 231434404 is about 15212.9682836717. The cubic root of 231434404 is about 613.9636225694.

Adding to 231434404 its reverse (404434132), we get a palindrome (635868536).

The spelling of 231434404 in words is "two hundred thirty-one million, four hundred thirty-four thousand, four hundred four".