4402643 has 8 divisors (see below), whose sum is σ = 5327712. Its totient is φ = 3551616.

The previous prime is 4402633. The next prime is 4402663. The reversal of 4402643 is 3462044.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 4402643 - 2⁴ = 4402627 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4402613) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18380 + ... + 18617.

It is an arithmetic number, because the mean of its divisors is an integer number (665964).

Almost surely, 2^4402643 is an apocalyptic number.

4402643 is a deficient number, since it is larger than the sum of its proper divisors (925069).

4402643 is a wasteful number, since it uses less digits than its factorization.

4402643 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37021.

The product of its (nonzero) digits is 2304, while the sum is 23.

The square root of 4402643 is about 2098.2476021671. The cubic root of 4402643 is about 163.8970576455.

Adding to 4402643 its reverse (3462044), we get a palindrome (7864687).

The spelling of 4402643 in words is "four million, four hundred two thousand, six hundred forty-three".