1840349 has 8 divisors (see below), whose sum is σ = 2112960. Its totient is φ = 1570176.

The previous prime is 1840337. The next prime is 1840351. The reversal of 1840349 is 9430481.

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

It is a cyclic number.

It is not a de Polignac number, because 1840349 - 2¹⁶ = 1774813 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 (1840049) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1517 + ... + 2445.

It is an arithmetic number, because the mean of its divisors is an integer number (264120).

2^1840349 is an apocalyptic number.

It is an amenable number.

1840349 is a deficient number, since it is larger than the sum of its proper divisors (272611).

1840349 is an equidigital number, since it uses as much as digits as its factorization.

1840349 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1219.

The product of its (nonzero) digits is 3456, while the sum is 29.

The square root of 1840349 is about 1356.5946336323. The cubic root of 1840349 is about 122.5462604679.

The spelling of 1840349 in words is "one million, eight hundred forty thousand, three hundred forty-nine".