4391045 has 8 divisors (see below), whose sum is σ = 5498496. Its totient is φ = 3360016.

The previous prime is 4391041. The next prime is 4391063. The reversal of 4391045 is 5401934.

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 4391045 - 2² = 4391041 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4391041) 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, 18977 + ... + 19206.

It is an arithmetic number, because the mean of its divisors is an integer number (687312).

Almost surely, 2^4391045 is an apocalyptic number.

It is an amenable number.

4391045 is a deficient number, since it is larger than the sum of its proper divisors (1107451).

4391045 is a wasteful number, since it uses less digits than its factorization.

4391045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38211.

The product of its (nonzero) digits is 2160, while the sum is 26.

The square root of 4391045 is about 2095.4820447811. The cubic root of 4391045 is about 163.7530116184.

Adding to 4391045 its reverse (5401934), we get a palindrome (9792979).

The spelling of 4391045 in words is "four million, three hundred ninety-one thousand, forty-five".