381444022444 has 12 divisors (see below), whose sum is σ = 667581294744. Its totient is φ = 190706509664.

The previous prime is 381444022357. The next prime is 381444022447. The reversal of 381444022444 is 444220444183.

It is a junction number, because it is equal to n+sod(n) for n = 381444022397 and 381444022406.

It is not an unprimeable number, because it can be changed into a prime (381444022447) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3819937 + ... + 3918520.

It is an arithmetic number, because the mean of its divisors is an integer number (55631774562).

Almost surely, 2^381444022444 is an apocalyptic number.

It is an amenable number.

381444022444 is a deficient number, since it is larger than the sum of its proper divisors (286137272300).

381444022444 is a wasteful number, since it uses less digits than its factorization.

381444022444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7750784 (or 7750782 counting only the distinct ones).

The product of its (nonzero) digits is 393216, while the sum is 40.

The spelling of 381444022444 in words is "three hundred eighty-one billion, four hundred forty-four million, twenty-two thousand, four hundred forty-four".