1204506 has 24 divisors (see below), whose sum is σ = 2654964. Its totient is φ = 394560.

The previous prime is 1204493. The next prime is 1204507. The reversal of 1204506 is 6054021.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 1010025 + 194481 = 1005^2 + 441^2 .

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an Ulam number.

It is not an unprimeable number, because it can be changed into a prime (1204507) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 550 + ... + 1646.

2^1204506 is an apocalyptic number.

It is a pronic number, being equal to 1097×1098.

1204506 is an abundant number, since it is smaller than the sum of its proper divisors (1450458).

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

1204506 is a wasteful number, since it uses less digits than its factorization.

1204506 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1166 (or 1163 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 18.

The square root of 1204506 is about 1097.4998861048. The cubic root of 1204506 is about 106.3987002121.

Adding to 1204506 its reverse (6054021), we get a palindrome (7258527).

The spelling of 1204506 in words is "one million, two hundred four thousand, five hundred six".