440046816645 has 24 divisors (see below), whose sum is σ = 714740441184. Its totient is φ = 231188739936.

The previous prime is 440046816623. The next prime is 440046816661. The reversal of 440046816645 is 546618640044.

It is a happy number.

It is not a de Polignac number, because 440046816645 - 2⁸ = 440046816389 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 440046816594 and 440046816603.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3200259 + ... + 3334928.

It is an arithmetic number, because the mean of its divisors is an integer number (29780851716).

Almost surely, 2^440046816645 is an apocalyptic number.

It is an amenable number.

440046816645 is a deficient number, since it is larger than the sum of its proper divisors (274693624539).

440046816645 is an equidigital number, since it uses as much as digits as its factorization.

440046816645 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6535329 (or 6535262 counting only the distinct ones).

The product of its (nonzero) digits is 2211840, while the sum is 48.

The spelling of 440046816645 in words is "four hundred forty billion, forty-six million, eight hundred sixteen thousand, six hundred forty-five".