4338649 has 4 divisors (see below), whose sum is σ = 4958464. Its totient is φ = 3718836.

The previous prime is 4338647. The next prime is 4338671. The reversal of 4338649 is 9468334.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 9468334 = 2 ⋅4734167.

It is a cyclic number.

It is not a de Polignac number, because 4338649 - 2¹ = 4338647 is a prime.

It is not an unprimeable number, because it can be changed into a prime (4338643) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 309897 + ... + 309910.

It is an arithmetic number, because the mean of its divisors is an integer number (1239616).

Almost surely, 2^4338649 is an apocalyptic number.

It is an amenable number.

4338649 is a deficient number, since it is larger than the sum of its proper divisors (619815).

4338649 is an equidigital number, since it uses as much as digits as its factorization.

4338649 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 619814.

The product of its digits is 62208, while the sum is 37.

The square root of 4338649 is about 2082.9423899859. The cubic root of 4338649 is about 163.0990778576.

The spelling of 4338649 in words is "four million, three hundred thirty-eight thousand, six hundred forty-nine".