4478245 has 4 divisors (see below), whose sum is σ = 5373900. Its totient is φ = 3582592.

The previous prime is 4478237. The next prime is 4478249. The reversal of 4478245 is 5428744.

It is a happy number.

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 3261636 + 1216609 = 1806^2 + 1103^2 .

It is a cyclic number.

It is not a de Polignac number, because 4478245 - 2³ = 4478237 is a prime.

4478245 is a lucky number.

It is a self number, because there is not a number n which added to its sum of digits gives 4478245.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4478249) 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, 447820 + ... + 447829.

It is an arithmetic number, because the mean of its divisors is an integer number (1343475).

Almost surely, 2^4478245 is an apocalyptic number.

It is an amenable number.

4478245 is a deficient number, since it is larger than the sum of its proper divisors (895655).

4478245 is an equidigital number, since it uses as much as digits as its factorization.

4478245 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 895654.

The product of its digits is 35840, while the sum is 34.

The square root of 4478245 is about 2116.1864284604. The cubic root of 4478245 is about 164.8298828246.

The spelling of 4478245 in words is "four million, four hundred seventy-eight thousand, two hundred forty-five".