1916300749 has 4 divisors (see below), whose sum is σ = 2090509920. Its totient is φ = 1742091580.

The previous prime is 1916300731. The next prime is 1916300753. The reversal of 1916300749 is 9470036191.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1916300749 - 2⁷ = 1916300621 is a prime.

It is a super-2 number, since 2×1916300749² = 7344417121235922002, which contains 22 as substring.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1916300149) 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, 87104569 + ... + 87104590.

It is an arithmetic number, because the mean of its divisors is an integer number (522627480).

Almost surely, 2^1916300749 is an apocalyptic number.

It is an amenable number.

1916300749 is a deficient number, since it is larger than the sum of its proper divisors (174209171).

1916300749 is a wasteful number, since it uses less digits than its factorization.

1916300749 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 174209170.

The product of its (nonzero) digits is 40824, while the sum is 40.

The square root of 1916300749 is about 43775.5725148170. The cubic root of 1916300749 is about 1242.0942646768.

The spelling of 1916300749 in words is "one billion, nine hundred sixteen million, three hundred thousand, seven hundred forty-nine".