4478784 has 28 divisors (see below), whose sum is σ = 11850624. Its totient is φ = 1492864.

The previous prime is 4478783. The next prime is 4478801. The reversal of 4478784 is 4878744.

It is a super-2 number, since 2×4478784² = 40119012237312, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4478783) 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, 11472 + ... + 11855.

Almost surely, 2^4478784 is an apocalyptic number.

It is an amenable number.

4478784 is an abundant number, since it is smaller than the sum of its proper divisors (7371840).

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

4478784 is a wasteful number, since it uses less digits than its factorization.

4478784 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23342 (or 23332 counting only the distinct ones).

The product of its digits is 200704, while the sum is 42.

The square root of 4478784 is about 2116.3137763574. The cubic root of 4478784 is about 164.8364955149.

The spelling of 4478784 in words is "four million, four hundred seventy-eight thousand, seven hundred eighty-four".