234625209 has 16 divisors (see below), whose sum is σ = 385026432. Its totient is φ = 123758208.

The previous prime is 234625207. The next prime is 234625219. The reversal of 234625209 is 902526432.

It is not a de Polignac number, because 234625209 - 2¹ = 234625207 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 234625209.

It is not an unprimeable number, because it can be changed into a prime (234625207) 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, 429444 + ... + 429989.

It is an arithmetic number, because the mean of its divisors is an integer number (24064152).

Almost surely, 2^234625209 is an apocalyptic number.

It is an amenable number.

234625209 is a deficient number, since it is larger than the sum of its proper divisors (150401223).

234625209 is a wasteful number, since it uses less digits than its factorization.

234625209 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 859456.

The product of its (nonzero) digits is 25920, while the sum is 33.

The square root of 234625209 is about 15317.4805043127. The cubic root of 234625209 is about 616.7723426720.

The spelling of 234625209 in words is "two hundred thirty-four million, six hundred twenty-five thousand, two hundred nine".