305544242 has 16 divisors (see below), whose sum is σ = 468231192. Its totient is φ = 149493120.

The previous prime is 305544233. The next prime is 305544293. The reversal of 305544242 is 242445503.

It can be written as a sum of positive squares in 4 ways, for example, as 302725201 + 2819041 = 17399^2 + 1679^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17678 + ... + 30390.

Almost surely, 2^305544242 is an apocalyptic number.

305544242 is a deficient number, since it is larger than the sum of its proper divisors (162686950).

305544242 is a wasteful number, since it uses less digits than its factorization.

305544242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12973.

The product of its (nonzero) digits is 19200, while the sum is 29.

The square root of 305544242 is about 17479.8238549477. The cubic root of 305544242 is about 673.5316904629.

Adding to 305544242 its reverse (242445503), we get a palindrome (547989745).

The spelling of 305544242 in words is "three hundred five million, five hundred forty-four thousand, two hundred forty-two".