232943409 has 12 divisors (see below), whose sum is σ = 338237952. Its totient is φ = 154481400.

The previous prime is 232943407. The next prime is 232943413. The reversal of 232943409 is 904349232.

232943409 is a `hidden beast` number, since 23 + 294 + 340 + 9 = 666.

It is not a de Polignac number, because 232943409 - 2¹ = 232943407 is a prime.

It is not an unprimeable number, because it can be changed into a prime (232943407) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 66037 + ... + 69474.

It is an arithmetic number, because the mean of its divisors is an integer number (28186496).

Almost surely, 2^232943409 is an apocalyptic number.

It is an amenable number.

232943409 is a deficient number, since it is larger than the sum of its proper divisors (105294543).

232943409 is a wasteful number, since it uses less digits than its factorization.

232943409 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 135708 (or 135705 counting only the distinct ones).

The product of its (nonzero) digits is 46656, while the sum is 36.

The square root of 232943409 is about 15262.4837100650. The cubic root of 232943409 is about 615.2951270407.

The spelling of 232943409 in words is "two hundred thirty-two million, nine hundred forty-three thousand, four hundred nine".