1842644 has 12 divisors (see below), whose sum is σ = 3257268. Its totient is φ = 912000.

The previous prime is 1842641. The next prime is 1842661. The reversal of 1842644 is 4462481.

It can be written as a sum of positive squares in 2 ways, for example, as 1295044 + 547600 = 1138^2 + 740^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1842641) 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, 1877 + ... + 2684.

It is an arithmetic number, because the mean of its divisors is an integer number (271439).

2^1842644 is an apocalyptic number.

It is an amenable number.

1842644 is a deficient number, since it is larger than the sum of its proper divisors (1414624).

1842644 is a wasteful number, since it uses less digits than its factorization.

1842644 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4666 (or 4664 counting only the distinct ones).

The product of its digits is 6144, while the sum is 29.

The square root of 1842644 is about 1357.4402380952. The cubic root of 1842644 is about 122.5971795854.

The spelling of 1842644 in words is "one million, eight hundred forty-two thousand, six hundred forty-four".