4478730 has 32 divisors (see below), whose sum is σ = 10805184. Its totient is φ = 1188096.

The previous prime is 4478707. The next prime is 4478741. The reversal of 4478730 is 378744.

It is a happy number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 4478691 and 4478700.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9889 + ... + 10331.

It is an arithmetic number, because the mean of its divisors is an integer number (337662).

Almost surely, 2^4478730 is an apocalyptic number.

4478730 is an abundant number, since it is smaller than the sum of its proper divisors (6326454).

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

4478730 is a wasteful number, since it uses less digits than its factorization.

4478730 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 790.

The product of its (nonzero) digits is 18816, while the sum is 33.

The square root of 4478730 is about 2116.3010182864. The cubic root of 4478730 is about 164.8358330430.

The spelling of 4478730 in words is "four million, four hundred seventy-eight thousand, seven hundred thirty".