305213232 has 40 divisors (see below), whose sum is σ = 794502720. Its totient is φ = 100959040.

The previous prime is 305213231. The next prime is 305213329. The reversal of 305213232 is 232312503.

It is a junction number, because it is equal to n+sod(n) for n = 305213199 and 305213208.

It is not an unprimeable number, because it can be changed into a prime (305213231) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17982 + ... + 30557.

It is an arithmetic number, because the mean of its divisors is an integer number (19862568).

Almost surely, 2^305213232 is an apocalyptic number.

It is an amenable number.

305213232 is an abundant number, since it is smaller than the sum of its proper divisors (489289488).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

305213232 is a wasteful number, since it uses less digits than its factorization.

305213232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48681 (or 48675 counting only the distinct ones).

The product of its (nonzero) digits is 1080, while the sum is 21.

The square root of 305213232 is about 17470.3529443455. The cubic root of 305213232 is about 673.2883800550.

Adding to 305213232 its reverse (232312503), we get a palindrome (537525735).

The spelling of 305213232 in words is "three hundred five million, two hundred thirteen thousand, two hundred thirty-two".