305231434 has 8 divisors (see below), whose sum is σ = 465353028. Its totient is φ = 150113760.

The previous prime is 305231401. The next prime is 305231449. The reversal of 305231434 is 434132503.

It can be written as a sum of positive squares in 2 ways, for example, as 305026225 + 205209 = 17465^2 + 453^2 .

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 = 305231399 and 305231408.

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 3 ways as a sum of consecutive naturals, for example, 1250827 + ... + 1251070.

Almost surely, 2^305231434 is an apocalyptic number.

305231434 is a deficient number, since it is larger than the sum of its proper divisors (160121594).

305231434 is a wasteful number, since it uses less digits than its factorization.

305231434 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2501960.

The product of its (nonzero) digits is 4320, while the sum is 25.

The square root of 305231434 is about 17470.8738762547. The cubic root of 305231434 is about 673.3017640875.

Adding to 305231434 its reverse (434132503), we get a palindrome (739363937).

The spelling of 305231434 in words is "three hundred five million, two hundred thirty-one thousand, four hundred thirty-four".