305245132 has 24 divisors (see below), whose sum is σ = 578760336. Its totient is φ = 140302848.

The previous prime is 305245103. The next prime is 305245139. The reversal of 305245132 is 231542503.

It is a junction number, because it is equal to n+sod(n) for n = 305245097 and 305245106.

It is not an unprimeable number, because it can be changed into a prime (305245139) 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, 49273 + ... + 55120.

It is an arithmetic number, because the mean of its divisors is an integer number (24115014).

Almost surely, 2^305245132 is an apocalyptic number.

It is an amenable number.

305245132 is a deficient number, since it is larger than the sum of its proper divisors (273515204).

305245132 is a wasteful number, since it uses less digits than its factorization.

305245132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 104457 (or 104455 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 25.

The square root of 305245132 is about 17471.2658957501. The cubic root of 305245132 is about 673.3118359528.

Adding to 305245132 its reverse (231542503), we get a palindrome (536787635).

It can be divided in two parts, 3052 and 45132, that added together give a palindrome (48184).

The spelling of 305245132 in words is "three hundred five million, two hundred forty-five thousand, one hundred thirty-two".