1919818214 has 8 divisors (see below), whose sum is σ = 2899054800. Its totient is φ = 953466616.

The previous prime is 1919818213. The next prime is 1919818217. The reversal of 1919818214 is 4128189191.

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

It is a super-3 number, since 3×1919818214³ (a number of 29 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1919818213) 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 3 ways as a sum of consecutive naturals, for example, 3220874 + ... + 3221469.

It is an arithmetic number, because the mean of its divisors is an integer number (362381850).

Almost surely, 2^1919818214 is an apocalyptic number.

1919818214 is a deficient number, since it is larger than the sum of its proper divisors (979236586).

1919818214 is a wasteful number, since it uses less digits than its factorization.

1919818214 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6442494.

The product of its digits is 41472, while the sum is 44.

The square root of 1919818214 is about 43815.7302118771. The cubic root of 1919818214 is about 1242.8537753540.

The spelling of 1919818214 in words is "one billion, nine hundred nineteen million, eight hundred eighteen thousand, two hundred fourteen".