1812349 has 8 divisors (see below), whose sum is σ = 2259648. Its totient is φ = 1412160.

The previous prime is 1812347. The next prime is 1812359. The reversal of 1812349 is 9432181.

It is a happy number.

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 1812349 - 2¹ = 1812347 is a prime.

It is an alternating number because its digits alternate between odd and even.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1812341) 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, 11692 + ... + 11845.

It is an arithmetic number, because the mean of its divisors is an integer number (282456).

2^1812349 is an apocalyptic number.

It is an amenable number.

1812349 is a deficient number, since it is larger than the sum of its proper divisors (447299).

1812349 is a wasteful number, since it uses less digits than its factorization.

1812349 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23555.

The product of its digits is 1728, while the sum is 28.

The square root of 1812349 is about 1346.2351206234. The cubic root of 1812349 is about 121.9215880623.

The spelling of 1812349 in words is "one million, eight hundred twelve thousand, three hundred forty-nine".