1838231 has 4 divisors (see below), whose sum is σ = 1935000. Its totient is φ = 1741464.

The previous prime is 1838209. The next prime is 1838233. The reversal of 1838231 is 1328381.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 1838231 - 2⁶ = 1838167 is a prime.

It is a super-2 number, since 2×1838231² = 6758186418722, 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 1838231.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1838233) 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, 48356 + ... + 48393.

It is an arithmetic number, because the mean of its divisors is an integer number (483750).

2^1838231 is an apocalyptic number.

1838231 is a deficient number, since it is larger than the sum of its proper divisors (96769).

1838231 is an equidigital number, since it uses as much as digits as its factorization.

1838231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 96768.

The product of its digits is 1152, while the sum is 26.

The square root of 1838231 is about 1355.8137777733. The cubic root of 1838231 is about 122.4992308712.

The spelling of 1838231 in words is "one million, eight hundred thirty-eight thousand, two hundred thirty-one".