9218241945 has 24 divisors (see below), whose sum is σ = 17430858432. Its totient is φ = 4469450400.

The previous prime is 9218241937. The next prime is 9218241947. The reversal of 9218241945 is 5491428129.

It is a happy number.

9218241945 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 9218241945 - 2³ = 9218241937 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 9218241945.

It is not an unprimeable number, because it can be changed into a prime (9218241947) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 9310861 + ... + 9311850.

It is an arithmetic number, because the mean of its divisors is an integer number (726285768).

Almost surely, 2^9218241945 is an apocalyptic number.

It is an amenable number.

9218241945 is a deficient number, since it is larger than the sum of its proper divisors (8212616487).

9218241945 is a wasteful number, since it uses less digits than its factorization.

9218241945 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18622733 (or 18622730 counting only the distinct ones).

The product of its digits is 207360, while the sum is 45.

The square root of 9218241945 is about 96011.6760868177. The cubic root of 9218241945 is about 2096.7631119437.

The spelling of 9218241945 in words is "nine billion, two hundred eighteen million, two hundred forty-one thousand, nine hundred forty-five".