1838345 has 16 divisors (see below), whose sum is σ = 2389440. Its totient is φ = 1353024.

The previous prime is 1838341. The next prime is 1838371. The reversal of 1838345 is 5438381.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 1838345 - 2² = 1838341 is a prime.

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

It is not an unprimeable number, because it can be changed into a prime (1838341) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3254 + ... + 3776.

It is an arithmetic number, because the mean of its divisors is an integer number (149340).

2^1838345 is an apocalyptic number.

It is an amenable number.

1838345 is a deficient number, since it is larger than the sum of its proper divisors (551095).

1838345 is a wasteful number, since it uses less digits than its factorization.

1838345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 584.

The product of its digits is 11520, while the sum is 32.

The square root of 1838345 is about 1355.8558182934. The cubic root of 1838345 is about 122.5017631289.

The spelling of 1838345 in words is "one million, eight hundred thirty-eight thousand, three hundred forty-five".