1834399027 has 4 divisors (see below), whose sum is σ = 1834485016. Its totient is φ = 1834313040.

The previous prime is 1834399009. The next prime is 1834399033. The reversal of 1834399027 is 7209934381.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 7209934381 = 13 ⋅554610337.

It is a cyclic number.

It is not a de Polignac number, because 1834399027 - 2⁷ = 1834398899 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1834399087) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15868 + ... + 62614.

It is an arithmetic number, because the mean of its divisors is an integer number (458621254).

Almost surely, 2^1834399027 is an apocalyptic number.

1834399027 is a deficient number, since it is larger than the sum of its proper divisors (85989).

1834399027 is an equidigital number, since it uses as much as digits as its factorization.

1834399027 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 85988.

The product of its (nonzero) digits is 326592, while the sum is 46.

The square root of 1834399027 is about 42829.8847418482. The cubic root of 1834399027 is about 1224.1405109724.

It can be divided in two parts, 18343 and 99027, that added together give a triangular number (117370 = T₄₈₄).

The spelling of 1834399027 in words is "one billion, eight hundred thirty-four million, three hundred ninety-nine thousand, twenty-seven".