2018520349 has 4 divisors (see below), whose sum is σ = 2023338240. Its totient is φ = 2013702460.

The previous prime is 2018520307. The next prime is 2018520353. The reversal of 2018520349 is 9430258102.

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 2018520349 - 2¹³ = 2018512157 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2018524349) 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, 2408317 + ... + 2409154.

It is an arithmetic number, because the mean of its divisors is an integer number (505834560).

Almost surely, 2^2018520349 is an apocalyptic number.

It is an amenable number.

2018520349 is a deficient number, since it is larger than the sum of its proper divisors (4817891).

2018520349 is an equidigital number, since it uses as much as digits as its factorization.

2018520349 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4817890.

The product of its (nonzero) digits is 17280, while the sum is 34.

The square root of 2018520349 is about 44927.9461916523. The cubic root of 2018520349 is about 1263.7981365017.

The spelling of 2018520349 in words is "two billion, eighteen million, five hundred twenty thousand, three hundred forty-nine".