1798404 has 12 divisors (see below), whose sum is σ = 4196304. Its totient is φ = 599464.

The previous prime is 1798387. The next prime is 1798409. The reversal of 1798404 is 4048971.

It is a tau number, because it is divible by the number of its divisors (12).

It is not an unprimeable number, because it can be changed into a prime (1798409) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 74922 + ... + 74945.

It is an arithmetic number, because the mean of its divisors is an integer number (349692).

2^1798404 is an apocalyptic number.

It is an amenable number.

1798404 is an abundant number, since it is smaller than the sum of its proper divisors (2397900).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1798404 is a wasteful number, since it uses less digits than its factorization.

1798404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 149874 (or 149872 counting only the distinct ones).

The product of its (nonzero) digits is 8064, while the sum is 33.

The square root of 1798404 is about 1341.0458605134. The cubic root of 1798404 is about 121.6080767085.

The spelling of 1798404 in words is "one million, seven hundred ninety-eight thousand, four hundred four".