4245145188 has 12 divisors (see below), whose sum is σ = 9905338800. Its totient is φ = 1415048392.

The previous prime is 4245145169. The next prime is 4245145189. The reversal of 4245145188 is 8815415424.

It is a tau number, because it is divible by the number of its divisors (12).

It is not an unprimeable number, because it can be changed into a prime (4245145189) 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 3 ways as a sum of consecutive naturals, for example, 176881038 + ... + 176881061.

It is an arithmetic number, because the mean of its divisors is an integer number (825444900).

Almost surely, 2^4245145188 is an apocalyptic number.

It is an amenable number.

4245145188 is an abundant number, since it is smaller than the sum of its proper divisors (5660193612).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

4245145188 is a wasteful number, since it uses less digits than its factorization.

4245145188 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 353762106 (or 353762104 counting only the distinct ones).

The product of its digits is 204800, while the sum is 42.

The square root of 4245145188 is about 65154.7787042516. The cubic root of 4245145188 is about 1619.1888928472.

The spelling of 4245145188 in words is "four billion, two hundred forty-five million, one hundred forty-five thousand, one hundred eighty-eight".