1816941 has 16 divisors (see below), whose sum is σ = 2859008. Its totient is φ = 1004400.

The previous prime is 1816933. The next prime is 1816949. The reversal of 1816941 is 1496181.

It is an interprime number because it is at equal distance from previous prime (1816933) and next prime (1816949).

It is not a de Polignac number, because 1816941 - 2³ = 1816933 is a prime.

It is an alternating number because its digits alternate between odd and even.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1816899 and 1816908.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1816949) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 745 + ... + 2046.

It is an arithmetic number, because the mean of its divisors is an integer number (178688).

2^1816941 is an apocalyptic number.

It is an amenable number.

1816941 is a deficient number, since it is larger than the sum of its proper divisors (1042067).

1816941 is a wasteful number, since it uses less digits than its factorization.

1816941 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2832.

The product of its digits is 1728, while the sum is 30.

The square root of 1816941 is about 1347.9395387034. The cubic root of 1816941 is about 122.0244732772.

The spelling of 1816941 in words is "one million, eight hundred sixteen thousand, nine hundred forty-one".