233505345 has 16 divisors (see below), whose sum is σ = 393272640. Its totient is φ = 117981504.

The previous prime is 233505341. The next prime is 233505367. The reversal of 233505345 is 543505332.

It is not a de Polignac number, because 233505345 - 2² = 233505341 is a prime.

It is a super-2 number, since 2×233505345² = 109049492287138050, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (233505341) 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, 409374 + ... + 409943.

It is an arithmetic number, because the mean of its divisors is an integer number (24579540).

Almost surely, 2^233505345 is an apocalyptic number.

It is an amenable number.

233505345 is a deficient number, since it is larger than the sum of its proper divisors (159767295).

233505345 is a wasteful number, since it uses less digits than its factorization.

233505345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 819344.

The product of its (nonzero) digits is 27000, while the sum is 30.

The square root of 233505345 is about 15280.8816826779. The cubic root of 233505345 is about 615.7894943635.

The spelling of 233505345 in words is "two hundred thirty-three million, five hundred five thousand, three hundred forty-five".