945439845 has 16 divisors (see below), whose sum is σ = 1728804480. Its totient is φ = 432201024.

The previous prime is 945439843. The next prime is 945439849. The reversal of 945439845 is 548934549.

It is not a de Polignac number, because 945439845 - 2¹ = 945439843 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (945439843) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 4501990 + ... + 4502199.

It is an arithmetic number, because the mean of its divisors is an integer number (108050280).

Almost surely, 2^945439845 is an apocalyptic number.

It is an amenable number.

945439845 is a deficient number, since it is larger than the sum of its proper divisors (783364635).

945439845 is a wasteful number, since it uses less digits than its factorization.

945439845 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9004204.

The product of its digits is 3110400, while the sum is 51.

The square root of 945439845 is about 30748.0055450756. The cubic root of 945439845 is about 981.4721194055.

The spelling of 945439845 in words is "nine hundred forty-five million, four hundred thirty-nine thousand, eight hundred forty-five".