305235132 has 24 divisors (see below), whose sum is σ = 715596672. Its totient is φ = 101262000.

The previous prime is 305235131. The next prime is 305235137. The reversal of 305235132 is 231532503.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (305235131) 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, 57744 + ... + 62807.

It is an arithmetic number, because the mean of its divisors is an integer number (29816528).

Almost surely, 2^305235132 is an apocalyptic number.

It is an amenable number.

305235132 is an abundant number, since it is smaller than the sum of its proper divisors (410361540).

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

305235132 is a wasteful number, since it uses less digits than its factorization.

305235132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 120769 (or 120767 counting only the distinct ones).

The product of its (nonzero) digits is 2700, while the sum is 24.

The square root of 305235132 is about 17470.9797092207. The cubic root of 305235132 is about 673.3044831826.

Adding to 305235132 its reverse (231532503), we get a palindrome (536767635).

The spelling of 305235132 in words is "three hundred five million, two hundred thirty-five thousand, one hundred thirty-two".