4400442 has 24 divisors (see below), whose sum is σ = 9603360. Its totient is φ = 1456200.

The previous prime is 4400413. The next prime is 4400443. The reversal of 4400442 is 2440044.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (4400443) 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, 1909 + ... + 3527.

It is an arithmetic number, because the mean of its divisors is an integer number (400140).

Almost surely, 2^4400442 is an apocalyptic number.

4400442 is an abundant number, since it is smaller than the sum of its proper divisors (5202918).

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

4400442 is a wasteful number, since it uses less digits than its factorization.

4400442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1778 (or 1775 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 18.

The square root of 4400442 is about 2097.7230513106. The cubic root of 4400442 is about 163.8697409061.

Adding to 4400442 its reverse (2440044), we get a palindrome (6840486).

It can be divided in two parts, 440044 and 2, that multiplied together give a palindrome (880088).

The spelling of 4400442 in words is "four million, four hundred thousand, four hundred forty-two".