4389072 has 40 divisors (see below), whose sum is σ = 11532000. Its totient is φ = 1438080.

The previous prime is 4389071. The next prime is 4389083. The reversal of 4389072 is 2709834.

It is an alternating number because its digits alternate between even and odd.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4389071) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2179 + ... + 3677.

It is an arithmetic number, because the mean of its divisors is an integer number (288300).

Almost surely, 2^4389072 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 4389072, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5766000).

4389072 is an abundant number, since it is smaller than the sum of its proper divisors (7142928).

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

4389072 is a wasteful number, since it uses less digits than its factorization.

4389072 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1571 (or 1565 counting only the distinct ones).

The product of its (nonzero) digits is 12096, while the sum is 33.

The square root of 4389072 is about 2095.0112171537. The cubic root of 4389072 is about 163.7284819150.

The spelling of 4389072 in words is "four million, three hundred eighty-nine thousand, seventy-two".