1949933219 has 8 divisors (see below), whose sum is σ = 2105563152. Its totient is φ = 1795108320.

The previous prime is 1949933213. The next prime is 1949933231. The reversal of 1949933219 is 9123399491.

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

It is a cyclic number.

It is not a de Polignac number, because 1949933219 - 2²⁰ = 1948884643 is a prime.

It is a super-2 number, since 2×1949933219² = 7604479117119403922, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1949933213) 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 7 ways as a sum of consecutive naturals, for example, 196217 + ... + 205914.

It is an arithmetic number, because the mean of its divisors is an integer number (263195394).

Almost surely, 2^1949933219 is an apocalyptic number.

1949933219 is a deficient number, since it is larger than the sum of its proper divisors (155629933).

1949933219 is a wasteful number, since it uses less digits than its factorization.

1949933219 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 402517.

The product of its digits is 472392, while the sum is 50.

The square root of 1949933219 is about 44158.0481792391. The cubic root of 1949933219 is about 1249.3187154686.

The spelling of 1949933219 in words is "one billion, nine hundred forty-nine million, nine hundred thirty-three thousand, two hundred nineteen".