1916186349 has 16 divisors (see below), whose sum is σ = 3185349120. Its totient is φ = 995421360.

The previous prime is 1916186333. The next prime is 1916186359. The reversal of 1916186349 is 9436816191.

It is a happy number.

It is not a de Polignac number, because 1916186349 - 2⁴ = 1916186333 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1916186298 and 1916186307.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1916186359) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 4147359 + ... + 4147820.

It is an arithmetic number, because the mean of its divisors is an integer number (199084320).

Almost surely, 2^1916186349 is an apocalyptic number.

It is an amenable number.

1916186349 is a deficient number, since it is larger than the sum of its proper divisors (1269162771).

1916186349 is a wasteful number, since it uses less digits than its factorization.

1916186349 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8295200.

The product of its digits is 279936, while the sum is 48.

The square root of 1916186349 is about 43774.2658305082. The cubic root of 1916186349 is about 1242.0695471906.

The spelling of 1916186349 in words is "one billion, nine hundred sixteen million, one hundred eighty-six thousand, three hundred forty-nine".