2404445 has 16 divisors (see below), whose sum is σ = 3045168. Its totient is φ = 1820160.

The previous prime is 2404421. The next prime is 2404459. The reversal of 2404445 is 5444042.

It can be written as a sum of positive squares in 8 ways, for example, as 362404 + 2042041 = 602^2 + 1429^2 .

It is a de Polignac number, because none of the positive numbers 2^k-2404445 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2404445.

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, 7427 + ... + 7743.

It is an arithmetic number, because the mean of its divisors is an integer number (190323).

2^2404445 is an apocalyptic number.

It is an amenable number.

2404445 is a deficient number, since it is larger than the sum of its proper divisors (640723).

2404445 is a wasteful number, since it uses less digits than its factorization.

2404445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 400.

The product of its (nonzero) digits is 2560, while the sum is 23.

The square root of 2404445 is about 1550.6272924207. The cubic root of 2404445 is about 133.9691954140.

Adding to 2404445 its reverse (5444042), we get a palindrome (7848487).

The spelling of 2404445 in words is "two million, four hundred four thousand, four hundred forty-five".