1023455044444 has 24 divisors (see below), whose sum is σ = 2071571660928. Its totient is φ = 433338967920.

The previous prime is 1023455044397. The next prime is 1023455044457. The reversal of 1023455044444 is 4444405543201.

It is a junction number, because it is equal to n+sod(n) for n = 1023455044397 and 1023455044406.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 220190242 + ... + 220194889.

It is an arithmetic number, because the mean of its divisors is an integer number (86315485872).

Almost surely, 2^{1023455044444} is an apocalyptic number.

1023455044444 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

1023455044444 is an abundant number, since it is smaller than the sum of its proper divisors (1048116616484).

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

1023455044444 is a wasteful number, since it uses less digits than its factorization.

1023455044444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 440385225 (or 440385223 counting only the distinct ones).

The product of its (nonzero) digits is 614400, while the sum is 40.

The spelling of 1023455044444 in words is "one trillion, twenty-three billion, four hundred fifty-five million, forty-four thousand, four hundred forty-four".