4440440399 has 4 divisors (see below), whose sum is σ = 4456242960. Its totient is φ = 4424637840.

The previous prime is 4440440393. The next prime is 4440440483. The reversal of 4440440399 is 9930440444.

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 4440440399 - 2⁴ = 4440440383 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4440440393) 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, 7900859 + ... + 7901420.

It is an arithmetic number, because the mean of its divisors is an integer number (1114060740).

Almost surely, 2^4440440399 is an apocalyptic number.

4440440399 is a deficient number, since it is larger than the sum of its proper divisors (15802561).

4440440399 is a wasteful number, since it uses less digits than its factorization.

4440440399 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15802560.

The product of its (nonzero) digits is 248832, while the sum is 41.

The square root of 4440440399 is about 66636.6295591246. The cubic root of 4440440399 is about 1643.6474932795.

The spelling of 4440440399 in words is "four billion, four hundred forty million, four hundred forty thousand, three hundred ninety-nine".