1844949 has 4 divisors (see below), whose sum is σ = 2459936. Its totient is φ = 1229964.

The previous prime is 1844939. The next prime is 1844963. The reversal of 1844949 is 9494481.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 9494481 = 3 ⋅3164827.

It is not a de Polignac number, because 1844949 - 2⁵ = 1844917 is a prime.

It is a D-number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1844939) 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 in 3 ways as a sum of consecutive naturals, for example, 307489 + ... + 307494.

It is an arithmetic number, because the mean of its divisors is an integer number (614984).

2^1844949 is an apocalyptic number.

It is an amenable number.

1844949 is a deficient number, since it is larger than the sum of its proper divisors (614987).

1844949 is an equidigital number, since it uses as much as digits as its factorization.

1844949 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 614986.

The product of its digits is 41472, while the sum is 39.

The square root of 1844949 is about 1358.2889972314. The cubic root of 1844949 is about 122.6482780341.

The spelling of 1844949 in words is "one million, eight hundred forty-four thousand, nine hundred forty-nine".