945444645 has 24 divisors (see below), whose sum is σ = 1639493856. Its totient is φ = 504014688.

The previous prime is 945444629. The next prime is 945444649. The reversal of 945444645 is 546444549.

945444645 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 945444645 - 2⁴ = 945444629 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 945444645.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (945444649) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 174954 + ... + 180276.

It is an arithmetic number, because the mean of its divisors is an integer number (68312244).

Almost surely, 2^945444645 is an apocalyptic number.

It is an amenable number.

945444645 is a deficient number, since it is larger than the sum of its proper divisors (694049211).

945444645 is a wasteful number, since it uses less digits than its factorization.

945444645 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9281 (or 9278 counting only the distinct ones).

The product of its digits is 1382400, while the sum is 45.

The square root of 945444645 is about 30748.0835988196. The cubic root of 945444645 is about 981.4737803814.

The spelling of 945444645 in words is "nine hundred forty-five million, four hundred forty-four thousand, six hundred forty-five".