4442536 has 32 divisors (see below), whose sum is σ = 9720000. Its totient is φ = 1902768.

The previous prime is 4442531. The next prime is 4442549. The reversal of 4442536 is 6352444.

It is a super-2 number, since 2×4442536² = 39472252222592, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is a d-powerful number, because it can be written as 4⁶ + 4⁸ + 4¹¹ + 2⁵ + 5³ + 3¹¹ + 6⁴ .

It is not an unprimeable number, because it can be changed into a prime (4442531) 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, 1935 + ... + 3553.

It is an arithmetic number, because the mean of its divisors is an integer number (303750).

Almost surely, 2^4442536 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 4442536, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4860000).

4442536 is an abundant number, since it is smaller than the sum of its proper divisors (5277464).

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

4442536 is a wasteful number, since it uses less digits than its factorization.

4442536 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1646 (or 1628 counting only the distinct ones).

The product of its digits is 11520, while the sum is 28.

The square root of 4442536 is about 2107.7324308365. The cubic root of 4442536 is about 164.3906017759.

The spelling of 4442536 in words is "four million, four hundred forty-two thousand, five hundred thirty-six".