1838426 has 12 divisors (see below), whose sum is σ = 2858622. Its totient is φ = 886704.

The previous prime is 1838423. The next prime is 1838429. The reversal of 1838426 is 6248381.

It is an interprime number because it is at equal distance from previous prime (1838423) and next prime (1838429).

It can be written as a sum of positive squares in 3 ways, for example, as 1836025 + 2401 = 1355^2 + 49^2 .

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 1838392 and 1838401.

It is not an unprimeable number, because it can be changed into a prime (1838423) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1136 + ... + 2228.

2^1838426 is an apocalyptic number.

1838426 is a deficient number, since it is larger than the sum of its proper divisors (1020196).

1838426 is a wasteful number, since it uses less digits than its factorization.

1838426 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1153 (or 1124 counting only the distinct ones).

The product of its digits is 9216, while the sum is 32.

The square root of 1838426 is about 1355.8856883971. The cubic root of 1838426 is about 122.5035623010.

The spelling of 1838426 in words is "one million, eight hundred thirty-eight thousand, four hundred twenty-six".