1204445 has 16 divisors (see below), whose sum is σ = 1607040. Its totient is φ = 859200.

The previous prime is 1204421. The next prime is 1204447. The reversal of 1204445 is 5444021.

It is not a de Polignac number, because 1204445 - 2¹⁰ = 1203421 is a prime.

It is an Ulam number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1204447) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3176 + ... + 3534.

It is an arithmetic number, because the mean of its divisors is an integer number (100440).

2^1204445 is an apocalyptic number.

It is an amenable number.

1204445 is a deficient number, since it is larger than the sum of its proper divisors (402595).

1204445 is a wasteful number, since it uses less digits than its factorization.

1204445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 436.

The product of its (nonzero) digits is 640, while the sum is 20.

The square root of 1204445 is about 1097.4720953172. The cubic root of 1204445 is about 106.3969040594.

Adding to 1204445 its reverse (5444021), we get a palindrome (6648466).

The spelling of 1204445 in words is "one million, two hundred four thousand, four hundred forty-five".