1868426 has 16 divisors (see below), whose sum is σ = 3290496. Its totient is φ = 778896.

The previous prime is 1868423. The next prime is 1868443. The reversal of 1868426 is 6248681.

It is a Smith number, since the sum of its digits (35) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a plaindrome in base 9.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1868423) 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, 1286 + ... + 2321.

It is an arithmetic number, because the mean of its divisors is an integer number (205656).

2^1868426 is an apocalyptic number.

1868426 is a deficient number, since it is larger than the sum of its proper divisors (1422070).

1868426 is a wasteful number, since it uses less digits than its factorization.

1868426 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3653.

The product of its digits is 18432, while the sum is 35.

The square root of 1868426 is about 1366.9038005654. The cubic root of 1868426 is about 123.1663204868.

The spelling of 1868426 in words is "one million, eight hundred sixty-eight thousand, four hundred twenty-six".