1918341 has 6 divisors (see below), whose sum is σ = 2770950. Its totient is φ = 1278888.

The previous prime is 1918327. The next prime is 1918351. The reversal of 1918341 is 1438191.

It can be written as a sum of positive squares in only one way, i.e., 1766241 + 152100 = 1329^2 + 390^2 .

It is not a de Polignac number, because 1918341 - 2¹⁰ = 1917317 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1918351) 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, 106566 + ... + 106583.

It is an arithmetic number, because the mean of its divisors is an integer number (461825).

2^1918341 is an apocalyptic number.

It is an amenable number.

1918341 is a deficient number, since it is larger than the sum of its proper divisors (852609).

1918341 is a wasteful number, since it uses less digits than its factorization.

1918341 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 213155 (or 213152 counting only the distinct ones).

The product of its digits is 864, while the sum is 27.

The square root of 1918341 is about 1385.0418766232. The cubic root of 1918341 is about 124.2534920148.

The spelling of 1918341 in words is "one million, nine hundred eighteen thousand, three hundred forty-one".