1844641 has 2 divisors, whose sum is σ = 1844642. Its totient is φ = 1844640.

The previous prime is 1844617. The next prime is 1844659. The reversal of 1844641 is 1464481.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1766241 + 78400 = 1329^2 + 280^2 .

It is an emirp because it is prime and its reverse (1464481) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1844641 - 2¹³ = 1836449 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (1844681) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 922320 + 922321.

It is an arithmetic number, because the mean of its divisors is an integer number (922321).

2^1844641 is an apocalyptic number.

It is an amenable number.

1844641 is a deficient number, since it is larger than the sum of its proper divisors (1).

1844641 is an equidigital number, since it uses as much as digits as its factorization.

1844641 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3072, while the sum is 28.

The square root of 1844641 is about 1358.1756145654. The cubic root of 1844641 is about 122.6414525930.

It can be divided in two parts, 1844 and 641, that added together give a triangular number (2485 = T₇₀).

The spelling of 1844641 in words is "one million, eight hundred forty-four thousand, six hundred forty-one".