4389880 has 48 divisors (see below), whose sum is σ = 10868760. Its totient is φ = 1594560.

The previous prime is 4389871. The next prime is 4389881. The reversal of 4389880 is 889834.

It is a Harshad number since it is a multiple of its sum of digits (40).

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 11 ways as a sum of consecutive naturals, for example, 4387 + ... + 5293.

Almost surely, 2^4389880 is an apocalyptic number.

4389880 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

4389880 is the 1210-th octagonal number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 4389880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5434380).

4389880 is an abundant number, since it is smaller than the sum of its proper divisors (6478880).

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

4389880 is a wasteful number, since it uses less digits than its factorization.

4389880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 940 (or 925 counting only the distinct ones).

The product of its (nonzero) digits is 55296, while the sum is 40.

The square root of 4389880 is about 2095.2040473424. The cubic root of 4389880 is about 163.7385284196.

The spelling of 4389880 in words is "four million, three hundred eighty-nine thousand, eight hundred eighty".