231403434 has 16 divisors (see below), whose sum is σ = 466903872. Its totient is φ = 76451648.

The previous prime is 231403429. The next prime is 231403453. The reversal of 231403434 is 434304132.

It is a Smith number, since the sum of its digits (24) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

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, 169974 + ... + 171329.

It is an arithmetic number, because the mean of its divisors is an integer number (29181492).

Almost surely, 2^231403434 is an apocalyptic number.

231403434 is an abundant number, since it is smaller than the sum of its proper divisors (235500438).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

231403434 is a wasteful number, since it uses less digits than its factorization.

231403434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 341421.

The product of its (nonzero) digits is 3456, while the sum is 24.

The square root of 231403434 is about 15211.9503680495. The cubic root of 231403434 is about 613.9362349651.

Adding to 231403434 its reverse (434304132), we get a palindrome (665707566).

The spelling of 231403434 in words is "two hundred thirty-one million, four hundred three thousand, four hundred thirty-four".