1842664 has 24 divisors (see below), whose sum is σ = 3674790. Its totient is φ = 866048.

The previous prime is 1842661. The next prime is 1842667. The reversal of 1842664 is 4662481.

It is an interprime number because it is at equal distance from previous prime (1842661) and next prime (1842667).

It can be written as a sum of positive squares in 3 ways, for example, as 1822500 + 20164 = 1350^2 + 142^2 .

It is not an unprimeable number, because it can be changed into a prime (1842661) 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 5 ways as a sum of consecutive naturals, for example, 1914 + ... + 2710.

2^1842664 is an apocalyptic number.

It is an amenable number.

1842664 is a deficient number, since it is larger than the sum of its proper divisors (1832126).

1842664 is a wasteful number, since it uses less digits than its factorization.

1842664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 837 (or 816 counting only the distinct ones).

The product of its digits is 9216, while the sum is 31.

The square root of 1842664 is about 1357.4476048820. The cubic root of 1842664 is about 122.5976231391.

The spelling of 1842664 in words is "one million, eight hundred forty-two thousand, six hundred sixty-four".