4405045 has 4 divisors (see below), whose sum is σ = 5286060. Its totient is φ = 3524032.

The previous prime is 4405043. The next prime is 4405067. The reversal of 4405045 is 5405044.

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 508369 + 3896676 = 713^2 + 1974^2 .

It is a cyclic number.

It is not a de Polignac number, because 4405045 - 2¹ = 4405043 is a prime.

It is an Ulam number.

4405045 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4405043) 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, 440500 + ... + 440509.

It is an arithmetic number, because the mean of its divisors is an integer number (1321515).

Almost surely, 2^4405045 is an apocalyptic number.

It is an amenable number.

4405045 is a deficient number, since it is larger than the sum of its proper divisors (881015).

4405045 is an equidigital number, since it uses as much as digits as its factorization.

4405045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 881014.

The product of its (nonzero) digits is 1600, while the sum is 22.

The square root of 4405045 is about 2098.8199065189. The cubic root of 4405045 is about 163.9268586203.

Subtracting 4405045 from its reverse (5405044), we obtain a palindrome (999999).

The spelling of 4405045 in words is "four million, four hundred five thousand, forty-five".