234040434 has 32 divisors (see below), whose sum is σ = 472280640. Its totient is φ = 77317632.

The previous prime is 234040427. The next prime is 234040439. The reversal of 234040434 is 434040432.

It is a happy number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (234040439) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 572022 + ... + 572430.

It is an arithmetic number, because the mean of its divisors is an integer number (14758770).

Almost surely, 2^234040434 is an apocalyptic number.

234040434 is an abundant number, since it is smaller than the sum of its proper divisors (238240206).

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

234040434 is a wasteful number, since it uses less digits than its factorization.

234040434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1034.

The product of its (nonzero) digits is 4608, while the sum is 24.

The square root of 234040434 is about 15298.3801103254. The cubic root of 234040434 is about 616.2595061806.

Adding to 234040434 its reverse (434040432), we get a palindrome (668080866).

The spelling of 234040434 in words is "two hundred thirty-four million, forty thousand, four hundred thirty-four".