4478922 has 96 divisors (see below), whose sum is σ = 12378240. Its totient is φ = 1175040.

The previous prime is 4478917. The next prime is 4478983. The reversal of 4478922 is 2298744.

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 47 ways as a sum of consecutive naturals, for example, 109222 + ... + 109262.

It is an arithmetic number, because the mean of its divisors is an integer number (128940).

Almost surely, 2^4478922 is an apocalyptic number.

4478922 is a gapful number since it is divisible by the number (42) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 4478922, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6189120).

4478922 is an abundant number, since it is smaller than the sum of its proper divisors (7899318).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

4478922 is a wasteful number, since it uses less digits than its factorization.

4478922 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 93 (or 70 counting only the distinct ones).

The product of its digits is 32256, while the sum is 36.

The square root of 4478922 is about 2116.3463799671. The cubic root of 4478922 is about 164.8381884746.

The spelling of 4478922 in words is "four million, four hundred seventy-eight thousand, nine hundred twenty-two".