4243445 has 16 divisors (see below), whose sum is σ = 5287680. Its totient is φ = 3267264.

The previous prime is 4243439. The next prime is 4243453. The reversal of 4243445 is 5443424.

It is a cyclic number.

It is not a de Polignac number, because 4243445 - 2⁴ = 4243429 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 17636 + ... + 17874.

It is an arithmetic number, because the mean of its divisors is an integer number (330480).

Almost surely, 2^4243445 is an apocalyptic number.

It is an amenable number.

4243445 is a deficient number, since it is larger than the sum of its proper divisors (1044235).

4243445 is a wasteful number, since it uses less digits than its factorization.

4243445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 364.

The product of its digits is 7680, while the sum is 26.

The square root of 4243445 is about 2059.9623782972. The cubic root of 4243445 is about 161.8972701331.

Adding to 4243445 its reverse (5443424), we get a palindrome (9686869).

The spelling of 4243445 in words is "four million, two hundred forty-three thousand, four hundred forty-five".