234857505 has 16 divisors (see below), whose sum is σ = 379100160. Its totient is φ = 124147968.

The previous prime is 234857477. The next prime is 234857507. The reversal of 234857505 is 505758432.

It is not a de Polignac number, because 234857505 - 2¹⁰ = 234856481 is a prime.

It is not an unprimeable number, because it can be changed into a prime (234857507) 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, 67585 + ... + 70974.

It is an arithmetic number, because the mean of its divisors is an integer number (23693760).

Almost surely, 2^234857505 is an apocalyptic number.

It is an amenable number.

234857505 is a deficient number, since it is larger than the sum of its proper divisors (144242655).

234857505 is a wasteful number, since it uses less digits than its factorization.

234857505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 138680.

The product of its (nonzero) digits is 168000, while the sum is 39.

The square root of 234857505 is about 15325.0613375608. The cubic root of 234857505 is about 616.9758253397.

The spelling of 234857505 in words is "two hundred thirty-four million, eight hundred fifty-seven thousand, five hundred five".