4440344431 has 4 divisors (see below), whose sum is σ = 4445916552. Its totient is φ = 4434772312.

The previous prime is 4440344417. The next prime is 4440344443. The reversal of 4440344431 is 1344430444.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 4440344431 - 2¹³ = 4440336239 is a prime.

It is a super-2 number, since 2×4440344431² = 39433317331825427522, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 4440344393 and 4440344402.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4440354431) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2784865 + ... + 2786458.

It is an arithmetic number, because the mean of its divisors is an integer number (1111479138).

Almost surely, 2^4440344431 is an apocalyptic number.

4440344431 is a deficient number, since it is larger than the sum of its proper divisors (5572121).

4440344431 is an equidigital number, since it uses as much as digits as its factorization.

4440344431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5572120.

The product of its (nonzero) digits is 36864, while the sum is 31.

The square root of 4440344431 is about 66635.9094707951. The cubic root of 4440344431 is about 1643.6356522093.

Adding to 4440344431 its reverse (1344430444), we get a palindrome (5784774875).

The spelling of 4440344431 in words is "four billion, four hundred forty million, three hundred forty-four thousand, four hundred thirty-one".