1838313 has 12 divisors (see below), whose sum is σ = 2674308. Its totient is φ = 1216800.

The previous prime is 1838299. The next prime is 1838327. The reversal of 1838313 is 3138381.

It is an interprime number because it is at equal distance from previous prime (1838299) and next prime (1838327).

It can be written as a sum of positive squares in 2 ways, for example, as 166464 + 1671849 = 408^2 + 1293^2 .

It is not a de Polignac number, because 1838313 - 2⁴ = 1838297 is a prime.

It is an Ulam number.

It is not an unprimeable number, because it can be changed into a prime (1838813) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 763 + ... + 2063.

It is an arithmetic number, because the mean of its divisors is an integer number (222859).

2^1838313 is an apocalyptic number.

It is an amenable number.

1838313 is a deficient number, since it is larger than the sum of its proper divisors (835995).

1838313 is a wasteful number, since it uses less digits than its factorization.

1838313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1464 (or 1461 counting only the distinct ones).

The product of its digits is 1728, while the sum is 27.

The square root of 1838313 is about 1355.8440175772. The cubic root of 1838313 is about 122.5010523303.

The spelling of 1838313 in words is "one million, eight hundred thirty-eight thousand, three hundred thirteen".