305248836 has 24 divisors (see below), whose sum is σ = 725687424. Its totient is φ = 99829600.

The previous prime is 305248829. The next prime is 305248837. The reversal of 305248836 is 638842503.

It is a junction number, because it is equal to n+sod(n) for n = 305248794 and 305248803.

It is not an unprimeable number, because it can be changed into a prime (305248837) 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, 239340 + ... + 240611.

It is an arithmetic number, because the mean of its divisors is an integer number (30236976).

Almost surely, 2^305248836 is an apocalyptic number.

It is an amenable number.

305248836 is an abundant number, since it is smaller than the sum of its proper divisors (420438588).

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

305248836 is a wasteful number, since it uses less digits than its factorization.

305248836 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 480011 (or 480009 counting only the distinct ones).

The product of its (nonzero) digits is 138240, while the sum is 39.

The square root of 305248836 is about 17471.3718980508. The cubic root of 305248836 is about 673.3145593781.

The spelling of 305248836 in words is "three hundred five million, two hundred forty-eight thousand, eight hundred thirty-six".