1800704 has 20 divisors (see below), whose sum is σ = 3598914. Its totient is φ = 900096.

The previous prime is 1800677. The next prime is 1800707. The reversal of 1800704 is 4070081.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 1081600 + 719104 = 1040^2 + 848^2 .

It is not an unprimeable number, because it can be changed into a prime (1800707) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1247 + ... + 2270.

2^1800704 is an apocalyptic number.

It is an amenable number.

1800704 is a deficient number, since it is larger than the sum of its proper divisors (1798210).

1800704 is an frugal number, since it uses more digits than its factorization.

1800704 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3535 (or 3519 counting only the distinct ones).

The product of its (nonzero) digits is 224, while the sum is 20.

The square root of 1800704 is about 1341.9031261608. The cubic root of 1800704 is about 121.6598966229.

Adding to 1800704 its reverse (4070081), we get a palindrome (5870785).

The spelling of 1800704 in words is "one million, eight hundred thousand, seven hundred four".