1842404 has 12 divisors (see below), whose sum is σ = 3236604. Its totient is φ = 917664.

The previous prime is 1842391. The next prime is 1842413. The reversal of 1842404 is 4042481.

It can be written as a sum of positive squares in 2 ways, for example, as 996004 + 846400 = 998^2 + 920^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 1842404.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 542 + ... + 1994.

It is an arithmetic number, because the mean of its divisors is an integer number (269717).

2^1842404 is an apocalyptic number.

It is an amenable number.

1842404 is a deficient number, since it is larger than the sum of its proper divisors (1394200).

1842404 is a wasteful number, since it uses less digits than its factorization.

1842404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1774 (or 1772 counting only the distinct ones).

The product of its (nonzero) digits is 1024, while the sum is 23.

The square root of 1842404 is about 1357.3518335347. The cubic root of 1842404 is about 122.5918566906.

Adding to 1842404 its reverse (4042481), we get a palindrome (5884885).

The spelling of 1842404 in words is "one million, eight hundred forty-two thousand, four hundred four".