4389888 has 44 divisors (see below), whose sum is σ = 11708840. Its totient is φ = 1462272.

The previous prime is 4389883. The next prime is 4389899. The reversal of 4389888 is 8889834.

It is a happy number.

4389888 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×4389888² = 38542233305088, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4389881) 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, 2358 + ... + 3786.

It is an arithmetic number, because the mean of its divisors is an integer number (266110).

Almost surely, 2^4389888 is an apocalyptic number.

4389888 is a gapful number since it is divisible by the number (48) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 4389888, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5854420).

4389888 is an abundant number, since it is smaller than the sum of its proper divisors (7318952).

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

4389888 is a wasteful number, since it uses less digits than its factorization.

4389888 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1452 (or 1434 counting only the distinct ones).

The product of its digits is 442368, while the sum is 48.

The square root of 4389888 is about 2095.2059564635. The cubic root of 4389888 is about 163.7386278838.

The spelling of 4389888 in words is "four million, three hundred eighty-nine thousand, eight hundred eighty-eight".