1849345379 has 4 divisors (see below), whose sum is σ = 2113537584. Its totient is φ = 1585153176.

The previous prime is 1849345369. The next prime is 1849345409. The reversal of 1849345379 is 9735439481.

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

It is a cyclic number.

It is not a de Polignac number, because 1849345379 - 2⁴ = 1849345363 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1849345379.

It is not an unprimeable number, because it can be changed into a prime (1849345369) 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, 132096092 + ... + 132096105.

It is an arithmetic number, because the mean of its divisors is an integer number (528384396).

Almost surely, 2^1849345379 is an apocalyptic number.

1849345379 is a deficient number, since it is larger than the sum of its proper divisors (264192205).

1849345379 is an equidigital number, since it uses as much as digits as its factorization.

1849345379 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 264192204.

The product of its digits is 3265920, while the sum is 53.

The square root of 1849345379 is about 43004.0158473601. The cubic root of 1849345379 is about 1227.4562139010.

The spelling of 1849345379 in words is "one billion, eight hundred forty-nine million, three hundred forty-five thousand, three hundred seventy-nine".