4440440442 has 8 divisors (see below), whose sum is σ = 8880880896. Its totient is φ = 1480146812.

The previous prime is 4440440393. The next prime is 4440440483. The reversal of 4440440442 is 2440440444.

It is a sphenic number, since it is the product of 3 distinct primes.

4440440442 is an admirable number.

It is a super-2 number, since 2×4440440442² = 39435022637898310728, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 370036698 + ... + 370036709.

It is an arithmetic number, because the mean of its divisors is an integer number (1110110112).

Almost surely, 2^4440440442 is an apocalyptic number.

4440440442 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

4440440442 is a wasteful number, since it uses less digits than its factorization.

4440440442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 740073412.

The product of its (nonzero) digits is 32768, while the sum is 30.

The square root of 4440440442 is about 66636.6298817700. The cubic root of 4440440442 is about 1643.6474985850.

Adding to 4440440442 its reverse (2440440444), we get a palindrome (6880880886).

The spelling of 4440440442 in words is "four billion, four hundred forty million, four hundred forty thousand, four hundred forty-two".