440016445439 has 8 divisors (see below), whose sum is σ = 441093891840. Its totient is φ = 438939129816.

The previous prime is 440016445409. The next prime is 440016445441. The reversal of 440016445439 is 934544610044.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-440016445439 is a prime.

It is a super-2 number, since 2×440016445439² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a zygodrome in base 2.

It is a self number, because there is not a number n which added to its sum of digits gives 440016445439.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (440016445409) 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, 12646064 + ... + 12680810.

It is an arithmetic number, because the mean of its divisors is an integer number (55136736480).

Almost surely, 2^440016445439 is an apocalyptic number.

440016445439 is a deficient number, since it is larger than the sum of its proper divisors (1077446401).

440016445439 is a wasteful number, since it uses less digits than its factorization.

440016445439 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65389.

The product of its (nonzero) digits is 829440, while the sum is 44.

The spelling of 440016445439 in words is "four hundred forty billion, sixteen million, four hundred forty-five thousand, four hundred thirty-nine".