1838985 has 8 divisors (see below), whose sum is σ = 2942400. Its totient is φ = 980784.

The previous prime is 1838983. The next prime is 1838987. The reversal of 1838985 is 5898381.

It is an interprime number because it is at equal distance from previous prime (1838983) and next prime (1838987).

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

It is not a de Polignac number, because 1838985 - 2¹ = 1838983 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 (1838983) 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, 61285 + ... + 61314.

It is an arithmetic number, because the mean of its divisors is an integer number (367800).

2^1838985 is an apocalyptic number.

1838985 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1838985 is a deficient number, since it is larger than the sum of its proper divisors (1103415).

1838985 is a wasteful number, since it uses less digits than its factorization.

1838985 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 122607.

The product of its digits is 69120, while the sum is 42.

The square root of 1838985 is about 1356.0918110512. The cubic root of 1838985 is about 122.5159773690.

The spelling of 1838985 in words is "one million, eight hundred thirty-eight thousand, nine hundred eighty-five".