4238145 has 24 divisors (see below), whose sum is σ = 7488936. Its totient is φ = 2216448.

The previous prime is 4238119. The next prime is 4238149. The reversal of 4238145 is 5418324.

It can be written as a sum of positive squares in 4 ways, for example, as 767376 + 3470769 = 876^2 + 1863^2 .

It is not a de Polignac number, because 4238145 - 2⁸ = 4237889 is a prime.

4238145 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (4238149) 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, 1497 + ... + 3273.

It is an arithmetic number, because the mean of its divisors is an integer number (312039).

Almost surely, 2^4238145 is an apocalyptic number.

4238145 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

It is an amenable number.

4238145 is a deficient number, since it is larger than the sum of its proper divisors (3250791).

4238145 is a wasteful number, since it uses less digits than its factorization.

4238145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1841 (or 1838 counting only the distinct ones).

The product of its digits is 3840, while the sum is 27.

The square root of 4238145 is about 2058.6755451018. The cubic root of 4238145 is about 161.8298396207.

The spelling of 4238145 in words is "four million, two hundred thirty-eight thousand, one hundred forty-five".