1838081 has 4 divisors (see below), whose sum is σ = 2100672. Its totient is φ = 1575492.

The previous prime is 1838069. The next prime is 1838087. The reversal of 1838081 is 1808381.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 1808381 = 599 ⋅3019.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1838081 is a prime.

It is a super-2 number, since 2×1838081² = 6757083525122, which contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1838087) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 131285 + ... + 131298.

It is an arithmetic number, because the mean of its divisors is an integer number (525168).

2^1838081 is an apocalyptic number.

It is an amenable number.

1838081 is a deficient number, since it is larger than the sum of its proper divisors (262591).

1838081 is an equidigital number, since it uses as much as digits as its factorization.

1838081 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 262590.

The product of its (nonzero) digits is 1536, while the sum is 29.

The square root of 1838081 is about 1355.7584593135. The cubic root of 1838081 is about 122.4958987937.

The spelling of 1838081 in words is "one million, eight hundred thirty-eight thousand, eighty-one".