1944037542 has 8 divisors (see below), whose sum is σ = 3888075096. Its totient is φ = 648012512.

The previous prime is 1944037507. The next prime is 1944037577. The reversal of 1944037542 is 2457304491.

It is an interprime number because it is at equal distance from previous prime (1944037507) and next prime (1944037577).

It is a sphenic number, since it is the product of 3 distinct primes.

1944037542 is an admirable number.

It is a self number, because there is not a number n which added to its sum of digits gives 1944037542.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 162003123 + ... + 162003134.

It is an arithmetic number, because the mean of its divisors is an integer number (486009387).

Almost surely, 2^1944037542 is an apocalyptic number.

1944037542 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

1944037542 is a wasteful number, since it uses less digits than its factorization.

1944037542 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 324006262.

The product of its (nonzero) digits is 120960, while the sum is 39.

The square root of 1944037542 is about 44091.2411029674. The cubic root of 1944037542 is about 1248.0583277822.

The spelling of 1944037542 in words is "one billion, nine hundred forty-four million, thirty-seven thousand, five hundred forty-two".