1804442 has 8 divisors (see below), whose sum is σ = 2824416. Its totient is φ = 862972.

The previous prime is 1804433. The next prime is 1804447. The reversal of 1804442 is 2444081.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a Harshad number since it is a multiple of its sum of digits (23).

It is not an unprimeable number, because it can be changed into a prime (1804447) 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, 19568 + ... + 19659.

It is an arithmetic number, because the mean of its divisors is an integer number (353052).

2^1804442 is an apocalyptic number.

1804442 is a deficient number, since it is larger than the sum of its proper divisors (1019974).

1804442 is a wasteful number, since it uses less digits than its factorization.

1804442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39252.

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

The square root of 1804442 is about 1343.2952021056. The cubic root of 1804442 is about 121.7440211988.

The spelling of 1804442 in words is "one million, eight hundred four thousand, four hundred forty-two".