4013445 has 16 divisors (see below), whose sum is σ = 6799680. Its totient is φ = 2014464.

The previous prime is 4013441. The next prime is 4013461. The reversal of 4013445 is 5443104.

It is not a de Polignac number, because 4013445 - 2² = 4013441 is a prime.

It is a super-2 number, since 2×4013445² = 32215481536050, which contains 22 as substring.

It is a zygodrome in base 6.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4013441) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7615 + ... + 8124.

It is an arithmetic number, because the mean of its divisors is an integer number (424980).

Almost surely, 2^4013445 is an apocalyptic number.

It is an amenable number.

4013445 is a deficient number, since it is larger than the sum of its proper divisors (2786235).

4013445 is a wasteful number, since it uses less digits than its factorization.

4013445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15764.

The product of its (nonzero) digits is 960, while the sum is 21.

The square root of 4013445 is about 2003.3584302366. The cubic root of 4013445 is about 158.9177613559.

Adding to 4013445 its reverse (5443104), we get a palindrome (9456549).

The spelling of 4013445 in words is "four million, thirteen thousand, four hundred forty-five".