4478238 has 48 divisors (see below), whose sum is σ = 10501920. Its totient is φ = 1374912.

The previous prime is 4478237. The next prime is 4478249. The reversal of 4478238 is 8328744.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4478231) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 11820 + ... + 12192.

It is an arithmetic number, because the mean of its divisors is an integer number (218790).

Almost surely, 2^4478238 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 4478238, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5250960).

4478238 is an abundant number, since it is smaller than the sum of its proper divisors (6023682).

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

4478238 is a wasteful number, since it uses less digits than its factorization.

4478238 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 433 (or 430 counting only the distinct ones).

The product of its digits is 43008, while the sum is 36.

The square root of 4478238 is about 2116.1847745412. The cubic root of 4478238 is about 164.8297969420.

The spelling of 4478238 in words is "four million, four hundred seventy-eight thousand, two hundred thirty-eight".