232005478 has 4 divisors (see below), whose sum is σ = 348008220. Its totient is φ = 116002738.

The previous prime is 232005451. The next prime is 232005479. The reversal of 232005478 is 874500232.

It is a semiprime because it is the product of two primes.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (232005479) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 58001368 + ... + 58001371.

It is an arithmetic number, because the mean of its divisors is an integer number (87002055).

Almost surely, 2^232005478 is an apocalyptic number.

232005478 is a deficient number, since it is larger than the sum of its proper divisors (116002742).

232005478 is a wasteful number, since it uses less digits than its factorization.

232005478 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 116002741.

The product of its (nonzero) digits is 13440, while the sum is 31.

The square root of 232005478 is about 15231.7260348261. The cubic root of 232005478 is about 614.4682013496.

The spelling of 232005478 in words is "two hundred thirty-two million, five thousand, four hundred seventy-eight".