305245432042 has 8 divisors (see below), whose sum is σ = 458661682116. Its totient is φ = 152358204672.

The previous prime is 305245432013. The next prime is 305245432049. The reversal of 305245432042 is 240234542503.

It can be written as a sum of positive squares in 2 ways, for example, as 269266550281 + 35978881761 = 518909^2 + 189681^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 305245431989 and 305245432007.

It is not an unprimeable number, because it can be changed into a prime (305245432049) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 132254233 + ... + 132256540.

Almost surely, 2^305245432042 is an apocalyptic number.

305245432042 is a deficient number, since it is larger than the sum of its proper divisors (153416250074).

305245432042 is a wasteful number, since it uses less digits than its factorization.

305245432042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 264511352.

The product of its (nonzero) digits is 115200, while the sum is 34.

Adding to 305245432042 its reverse (240234542503), we get a palindrome (545479974545).

The spelling of 305245432042 in words is "three hundred five billion, two hundred forty-five million, four hundred thirty-two thousand, forty-two".