4238645 has 4 divisors (see below), whose sum is σ = 5086380. Its totient is φ = 3390912.

The previous prime is 4238617. The next prime is 4238651. The reversal of 4238645 is 5468324.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1697809 + 2540836 = 1303^2 + 1594^2 .

It is a cyclic number.

It is not a de Polignac number, because 4238645 - 2¹⁰ = 4237621 is a prime.

It is a super-2 number, since 2×4238645² = 35932222872050, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 423860 + ... + 423869.

It is an arithmetic number, because the mean of its divisors is an integer number (1271595).

Almost surely, 2^4238645 is an apocalyptic number.

It is an amenable number.

4238645 is a deficient number, since it is larger than the sum of its proper divisors (847735).

4238645 is an equidigital number, since it uses as much as digits as its factorization.

4238645 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 847734.

The product of its digits is 23040, while the sum is 32.

The square root of 4238645 is about 2058.7969788204. The cubic root of 4238645 is about 161.8362033905.

The spelling of 4238645 in words is "four million, two hundred thirty-eight thousand, six hundred forty-five".