4201445 has 4 divisors (see below), whose sum is σ = 5041740. Its totient is φ = 3361152.

The previous prime is 4201429. The next prime is 4201447. The reversal of 4201445 is 5441024.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1723969 + 2477476 = 1313^2 + 1574^2 .

It is a cyclic number.

It is not a de Polignac number, because 4201445 - 2⁴ = 4201429 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4201447) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 420140 + ... + 420149.

It is an arithmetic number, because the mean of its divisors is an integer number (1260435).

Almost surely, 2^4201445 is an apocalyptic number.

It is an amenable number.

4201445 is a deficient number, since it is larger than the sum of its proper divisors (840295).

4201445 is an equidigital number, since it uses as much as digits as its factorization.

4201445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 840294.

The product of its (nonzero) digits is 640, while the sum is 20.

The square root of 4201445 is about 2049.7426667755. The cubic root of 4201445 is about 161.3613656903.

Adding to 4201445 its reverse (5441024), we get a palindrome (9642469).

The spelling of 4201445 in words is "four million, two hundred one thousand, four hundred forty-five".