1842641 has 2 divisors, whose sum is σ = 1842642. Its totient is φ = 1842640.

The previous prime is 1842619. The next prime is 1842661. The reversal of 1842641 is 1462481.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1392400 + 450241 = 1180^2 + 671^2 .

It is a cyclic number.

It is not a de Polignac number, because 1842641 - 2¹⁴ = 1826257 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1842641.

It is not a weakly prime, because it can be changed into another prime (1842611) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 921320 + 921321.

It is an arithmetic number, because the mean of its divisors is an integer number (921321).

2^1842641 is an apocalyptic number.

It is an amenable number.

1842641 is a deficient number, since it is larger than the sum of its proper divisors (1).

1842641 is an equidigital number, since it uses as much as digits as its factorization.

1842641 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1536, while the sum is 26.

The square root of 1842641 is about 1357.4391330737. The cubic root of 1842641 is about 122.5971130520.

The spelling of 1842641 in words is "one million, eight hundred forty-two thousand, six hundred forty-one".