4413645 has 12 divisors (see below), whose sum is σ = 7650396. Its totient is φ = 2353920.

The previous prime is 4413637. The next prime is 4413671. The reversal of 4413645 is 5463144.

4413645 is a `hidden beast` number, since 4 + 4 + 13 + 645 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 715716 + 3697929 = 846^2 + 1923^2 .

It is not a de Polignac number, because 4413645 - 2³ = 4413637 is a prime.

It is a super-3 number, since 3×4413645³ (a number of 21 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 48996 + ... + 49085.

It is an arithmetic number, because the mean of its divisors is an integer number (637533).

Almost surely, 2^4413645 is an apocalyptic number.

4413645 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

It is an amenable number.

4413645 is a deficient number, since it is larger than the sum of its proper divisors (3236751).

4413645 is a wasteful number, since it uses less digits than its factorization.

4413645 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 98092 (or 98089 counting only the distinct ones).

The product of its digits is 5760, while the sum is 27.

The square root of 4413645 is about 2100.8676778893. The cubic root of 4413645 is about 164.0334677880.

Adding to 4413645 its reverse (5463144), we get a palindrome (9876789).

It can be divided in two parts, 44 and 13645, that added together give a square (13689 = 117²).

The spelling of 4413645 in words is "four million, four hundred thirteen thousand, six hundred forty-five".