4402645 has 8 divisors (see below), whose sum is σ = 5689656. Its totient is φ = 3251136.

The previous prime is 4402633. The next prime is 4402663. The reversal of 4402645 is 5462044.

It can be written as a sum of positive squares in 4 ways, for example, as 171396 + 4231249 = 414^2 + 2057^2 .

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 4402645 - 2⁵ = 4402613 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 33802 + ... + 33931.

It is an arithmetic number, because the mean of its divisors is an integer number (711207).

Almost surely, 2^4402645 is an apocalyptic number.

It is an amenable number.

4402645 is a deficient number, since it is larger than the sum of its proper divisors (1287011).

4402645 is a wasteful number, since it uses less digits than its factorization.

4402645 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67751.

The product of its (nonzero) digits is 3840, while the sum is 25.

The square root of 4402645 is about 2098.2480787552. The cubic root of 4402645 is about 163.8970824635.

Adding to 4402645 its reverse (5462044), we get a palindrome (9864689).

The spelling of 4402645 in words is "four million, four hundred two thousand, six hundred forty-five".