4478642 has 32 divisors (see below), whose sum is σ = 8208000. Its totient is φ = 1790208.

The previous prime is 4478641. The next prime is 4478647. The reversal of 4478642 is 2468744.

It is not an unprimeable number, because it can be changed into a prime (4478641) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 29984 + ... + 30132.

It is an arithmetic number, because the mean of its divisors is an integer number (256500).

Almost surely, 2^4478642 is an apocalyptic number.

4478642 is a deficient number, since it is larger than the sum of its proper divisors (3729358).

4478642 is a wasteful number, since it uses less digits than its factorization.

4478642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 290.

The product of its digits is 43008, while the sum is 35.

The square root of 4478642 is about 2116.2802271911. The cubic root of 4478642 is about 164.8347534476.

The spelling of 4478642 in words is "four million, four hundred seventy-eight thousand, six hundred forty-two".