1844749 has 2 divisors, whose sum is σ = 1844750. Its totient is φ = 1844748.

The previous prime is 1844747. The next prime is 1844813. The reversal of 1844749 is 9474481.

1844749 is nontrivially palindromic in base 4.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1087849 + 756900 = 1043^2 + 870^2 .

It is an emirp because it is prime and its reverse (9474481) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1844749 - 2¹ = 1844747 is a prime.

Together with 1844747, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1844741) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 922374 + 922375.

It is an arithmetic number, because the mean of its divisors is an integer number (922375).

2^1844749 is an apocalyptic number.

It is an amenable number.

1844749 is a deficient number, since it is larger than the sum of its proper divisors (1).

1844749 is an equidigital number, since it uses as much as digits as its factorization.

1844749 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 32256, while the sum is 37.

The square root of 1844749 is about 1358.2153732012. The cubic root of 1844749 is about 122.6438460160.

It can be divided in two parts, 18447 and 49, that added together give a square (18496 = 136²).

The spelling of 1844749 in words is "one million, eight hundred forty-four thousand, seven hundred forty-nine".