1942009008444 has 48 divisors (see below), whose sum is σ = 5043243744000. Its totient is φ = 646255619568.

The previous prime is 1942009008439. The next prime is 1942009008449. The reversal of 1942009008444 is 4448009002491.

It is an interprime number because it is at equal distance from previous prime (1942009008439) and next prime (1942009008449).

It is a super-2 number, since 2×1942009008444² (a number of 25 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1942009008444.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1942009008449) 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 15 ways as a sum of consecutive naturals, for example, 14944962 + ... + 15074345.

It is an arithmetic number, because the mean of its divisors is an integer number (105067578000).

Almost surely, 2^{1942009008444} is an apocalyptic number.

It is an amenable number.

1942009008444 is an abundant number, since it is smaller than the sum of its proper divisors (3101234735556).

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

1942009008444 is a wasteful number, since it uses less digits than its factorization.

1942009008444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30019919 (or 30019911 counting only the distinct ones).

The product of its (nonzero) digits is 331776, while the sum is 45.

The spelling of 1942009008444 in words is "one trillion, nine hundred forty-two billion, nine million, eight thousand, four hundred forty-four".