4478407 has 4 divisors (see below), whose sum is σ = 4582600. Its totient is φ = 4374216.

The previous prime is 4478387. The next prime is 4478413. The reversal of 4478407 is 7048744.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4478407 is a prime.

It is a super-2 number, since 2×4478407² = 40112258515298, which contains 22 as substring.

It is a Duffinian number.

4478407 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4478417) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 52032 + ... + 52117.

It is an arithmetic number, because the mean of its divisors is an integer number (1145650).

Almost surely, 2^4478407 is an apocalyptic number.

4478407 is a deficient number, since it is larger than the sum of its proper divisors (104193).

4478407 is a wasteful number, since it uses less digits than its factorization.

4478407 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 104192.

The product of its (nonzero) digits is 25088, while the sum is 34.

The square root of 4478407 is about 2116.2247045151. The cubic root of 4478407 is about 164.8318703680.

The spelling of 4478407 in words is "four million, four hundred seventy-eight thousand, four hundred seven".