4420440460644 has 24 divisors (see below), whose sum is σ = 11107773465600. Its totient is φ = 1360135526304.

The previous prime is 4420440460643. The next prime is 4420440460669. The reversal of 4420440460644 is 4460640440244.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 4420440460596 and 4420440460605.

It is not an unprimeable number, because it can be changed into a prime (4420440460643) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14168078244 + ... + 14168078555.

It is an arithmetic number, because the mean of its divisors is an integer number (462823894400).

Almost surely, 2^{4420440460644} is an apocalyptic number.

It is an amenable number.

4420440460644 is an abundant number, since it is smaller than the sum of its proper divisors (6687333004956).

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

4420440460644 is a wasteful number, since it uses less digits than its factorization.

4420440460644 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28336156819 (or 28336156817 counting only the distinct ones).

The product of its (nonzero) digits is 1179648, while the sum is 42.

The spelling of 4420440460644 in words is "four trillion, four hundred twenty billion, four hundred forty million, four hundred sixty thousand, six hundred forty-four".