4478149 has 8 divisors (see below), whose sum is σ = 4935392. Its totient is φ = 4037040.

The previous prime is 4478137. The next prime is 4478153. The reversal of 4478149 is 9418744.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 4478149 - 2²¹ = 2380997 is a prime.

It is a Duffinian number.

4478149 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4478189) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3447 + ... + 4564.

It is an arithmetic number, because the mean of its divisors is an integer number (616924).

Almost surely, 2^4478149 is an apocalyptic number.

It is an amenable number.

4478149 is a deficient number, since it is larger than the sum of its proper divisors (457243).

4478149 is a wasteful number, since it uses less digits than its factorization.

4478149 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8067.

The product of its digits is 32256, while the sum is 37.

The square root of 4478149 is about 2116.1637460272. The cubic root of 4478149 is about 164.8287049984.

The spelling of 4478149 in words is "four million, four hundred seventy-eight thousand, one hundred forty-nine".