1919944798 has 8 divisors (see below), whose sum is σ = 2881903608. Its totient is φ = 959310264.

The previous prime is 1919944721. The next prime is 1919944853. The reversal of 1919944798 is 8974499191.

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

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 327436 + ... + 333247.

It is an arithmetic number, because the mean of its divisors is an integer number (360237951).

Almost surely, 2^1919944798 is an apocalyptic number.

1919944798 is a deficient number, since it is larger than the sum of its proper divisors (961958810).

1919944798 is a wasteful number, since it uses less digits than its factorization.

1919944798 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 662138.

The product of its digits is 5878656, while the sum is 61.

The square root of 1919944798 is about 43817.1746921227. The cubic root of 1919944798 is about 1242.8810907779.

The spelling of 1919944798 in words is "one billion, nine hundred nineteen million, nine hundred forty-four thousand, seven hundred ninety-eight".