305324052240 has 80 divisors (see below), whose sum is σ = 996320606400. Its totient is φ = 77134496256.

The previous prime is 305324052227. The next prime is 305324052247. The reversal of 305324052240 is 42250423503.

It is a tau number, because it is divible by the number of its divisors (80).

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 305324052198 and 305324052207.

It is not an unprimeable number, because it can be changed into a prime (305324052247) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 33473955 + ... + 33483074.

It is an arithmetic number, because the mean of its divisors is an integer number (12454007580).

Almost surely, 2^305324052240 is an apocalyptic number.

305324052240 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

305324052240 is an abundant number, since it is smaller than the sum of its proper divisors (690996554160).

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

305324052240 is a wasteful number, since it uses less digits than its factorization.

305324052240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66957064 (or 66957058 counting only the distinct ones).

The product of its (nonzero) digits is 28800, while the sum is 30.

Adding to 305324052240 its reverse (42250423503), we get a palindrome (347574475743).

The spelling of 305324052240 in words is "three hundred five billion, three hundred twenty-four million, fifty-two thousand, two hundred forty".