305959945 has 16 divisors (see below), whose sum is σ = 391927680. Its totient is φ = 228614400.

The previous prime is 305959943. The next prime is 305959949. The reversal of 305959945 is 549959503.

It is not a de Polignac number, because 305959945 - 2¹ = 305959943 is a prime.

It is a super-2 number, since 2×305959945² = 187222975888806050, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (305959943) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15936 + ... + 29425.

It is an arithmetic number, because the mean of its divisors is an integer number (24495480).

Almost surely, 2^305959945 is an apocalyptic number.

It is an amenable number.

305959945 is a deficient number, since it is larger than the sum of its proper divisors (85967735).

305959945 is a wasteful number, since it uses less digits than its factorization.

305959945 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45456.

The product of its (nonzero) digits is 1093500, while the sum is 49.

The square root of 305959945 is about 17491.7107510958. The cubic root of 305959945 is about 673.8370060534.

The spelling of 305959945 in words is "three hundred five million, nine hundred fifty-nine thousand, nine hundred forty-five".