234520434 has 40 divisors (see below), whose sum is σ = 526437120. Its totient is φ = 78034104.

The previous prime is 234520411. The next prime is 234520453. The reversal of 234520434 is 434025432.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a junction number, because it is equal to n+sod(n) for n = 234520398 and 234520407.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 132447 + ... + 134205.

It is an arithmetic number, because the mean of its divisors is an integer number (13160928).

Almost surely, 2^234520434 is an apocalyptic number.

234520434 is an abundant number, since it is smaller than the sum of its proper divisors (291916686).

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

234520434 is a wasteful number, since it uses less digits than its factorization.

234520434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2596 (or 2587 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 27.

The square root of 234520434 is about 15314.0600103304. The cubic root of 234520434 is about 616.6805197115.

Adding to 234520434 its reverse (434025432), we get a palindrome (668545866).

The spelling of 234520434 in words is "two hundred thirty-four million, five hundred twenty thousand, four hundred thirty-four".