444444923860 has 48 divisors (see below), whose sum is σ = 1081691331840. Its totient is φ = 150234900480.

The previous prime is 444444923831. The next prime is 444444923873. The reversal of 444444923860 is 68329444444.

It is a junction number, because it is equal to n+sod(n) for n = 444444923798 and 444444923807.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 22346445 + ... + 22366324.

It is an arithmetic number, because the mean of its divisors is an integer number (22535236080).

Almost surely, 2^444444923860 is an apocalyptic number.

It is an amenable number.

444444923860 is an abundant number, since it is smaller than the sum of its proper divisors (637246407980).

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

444444923860 is a wasteful number, since it uses less digits than its factorization.

444444923860 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44712856 (or 44712854 counting only the distinct ones).

The product of its (nonzero) digits is 10616832, while the sum is 52.

The spelling of 444444923860 in words is "four hundred forty-four billion, four hundred forty-four million, nine hundred twenty-three thousand, eight hundred sixty".