4399072 has 48 divisors (see below), whose sum is σ = 9313920. Its totient is φ = 2040192.

The previous prime is 4399067. The next prime is 4399079. The reversal of 4399072 is 2709934.

It is a super-2 number, since 2×4399072² = 38703668922368, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4399079) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 31579 + ... + 31717.

It is an arithmetic number, because the mean of its divisors is an integer number (194040).

Almost surely, 2^4399072 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 4399072, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4656960).

4399072 is an abundant number, since it is smaller than the sum of its proper divisors (4914848).

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

4399072 is a wasteful number, since it uses less digits than its factorization.

4399072 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 215 (or 207 counting only the distinct ones).

The product of its (nonzero) digits is 13608, while the sum is 34.

The square root of 4399072 is about 2097.3964813549. The cubic root of 4399072 is about 163.8527331565.

It can be divided in two parts, 43 and 99072, that multiplied together give a square (4260096 = 2064²).

The spelling of 4399072 in words is "four million, three hundred ninety-nine thousand, seventy-two".