1840013 has 8 divisors (see below), whose sum is σ = 2152128. Its totient is φ = 1540224.

The previous prime is 1839997. The next prime is 1840019. The reversal of 1840013 is 3100481.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1840013 - 2⁴ = 1839997 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1839973 and 1840000.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1840019) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2756 + ... + 3357.

It is an arithmetic number, because the mean of its divisors is an integer number (269016).

2^1840013 is an apocalyptic number.

It is an amenable number.

1840013 is a deficient number, since it is larger than the sum of its proper divisors (312115).

1840013 is an equidigital number, since it uses as much as digits as its factorization.

1840013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6163.

The product of its (nonzero) digits is 96, while the sum is 17.

The square root of 1840013 is about 1356.4707884802. The cubic root of 1840013 is about 122.5388020910.

Adding to 1840013 its reverse (3100481), we get a palindrome (4940494).

The spelling of 1840013 in words is "one million, eight hundred forty thousand, thirteen".