1838516674 has 4 divisors (see below), whose sum is σ = 2757775014. Its totient is φ = 919258336.

The previous prime is 1838516651. The next prime is 1838516681. The reversal of 1838516674 is 4766158381.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 1180953225 + 657563449 = 34365^2 + 25643^2 .

It is a Smith number, since the sum of its digits (49) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 459629167 + ... + 459629170.

Almost surely, 2^1838516674 is an apocalyptic number.

1838516674 is a deficient number, since it is larger than the sum of its proper divisors (919258340).

1838516674 is an equidigital number, since it uses as much as digits as its factorization.

1838516674 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 919258339.

The product of its digits is 967680, while the sum is 49.

The square root of 1838516674 is about 42877.9275851807. The cubic root of 1838516674 is about 1225.0557628927.

The spelling of 1838516674 in words is "one billion, eight hundred thirty-eight million, five hundred sixteen thousand, six hundred seventy-four".