1838881 has 8 divisors (see below), whose sum is σ = 2016000. Its totient is φ = 1663440.

The previous prime is 1838869. The next prime is 1838909. The reversal of 1838881 is 1888381.

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 1838881 - 2¹⁵ = 1806113 is a prime.

It is a super-2 number, since 2×1838881² = 6762966664322, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1838881.

It is not an unprimeable number, because it can be changed into a prime (1832881) 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, 3600 + ... + 4078.

It is an arithmetic number, because the mean of its divisors is an integer number (252000).

2^1838881 is an apocalyptic number.

1838881 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1838881 is a deficient number, since it is larger than the sum of its proper divisors (177119).

1838881 is a wasteful number, since it uses less digits than its factorization.

1838881 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 839.

The product of its digits is 12288, while the sum is 37.

The square root of 1838881 is about 1356.0534650227. The cubic root of 1838881 is about 122.5136677794.

The spelling of 1838881 in words is "one million, eight hundred thirty-eight thousand, eight hundred eighty-one".