1999183214 has 32 divisors (see below), whose sum is σ = 3496214016. Its totient is φ = 839573280.

The previous prime is 1999183201. The next prime is 1999183259. The reversal of 1999183214 is 4123819991.

It is a Smith number, since the sum of its digits (47) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 956879 + ... + 958965.

It is an arithmetic number, because the mean of its divisors is an integer number (109256688).

Almost surely, 2^1999183214 is an apocalyptic number.

1999183214 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

1999183214 is a deficient number, since it is larger than the sum of its proper divisors (1497030802).

1999183214 is a wasteful number, since it uses less digits than its factorization.

1999183214 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3440.

The product of its digits is 139968, while the sum is 47.

The square root of 1999183214 is about 44712.2266723544. The cubic root of 1999183214 is about 1259.7495122287.

The spelling of 1999183214 in words is "one billion, nine hundred ninety-nine million, one hundred eighty-three thousand, two hundred fourteen".