1204425 has 36 divisors (see below), whose sum is σ = 2219724. Its totient is φ = 624000.

The previous prime is 1204421. The next prime is 1204447. The reversal of 1204425 is 5244021.

1204425 is nontrivially palindromic in base 2.

It can be written as a sum of positive squares in 6 ways, for example, as 82944 + 1121481 = 288^2 + 1059^2 .

It is not a de Polignac number, because 1204425 - 2² = 1204421 is a prime.

It is a hoax number, since the sum of its digits (18) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 1204398 and 1204407.

It is not an unprimeable number, because it can be changed into a prime (1204421) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 11875 + ... + 11975.

It is an arithmetic number, because the mean of its divisors is an integer number (61659).

2^1204425 is an apocalyptic number.

1204425 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1204425 is a deficient number, since it is larger than the sum of its proper divisors (1015299).

1204425 is a wasteful number, since it uses less digits than its factorization.

1204425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 170 (or 162 counting only the distinct ones).

The product of its (nonzero) digits is 320, while the sum is 18.

The square root of 1204425 is about 1097.4629834304. The cubic root of 1204425 is about 106.3963151436.

Adding to 1204425 its reverse (5244021), we get a palindrome (6448446).

The spelling of 1204425 in words is "one million, two hundred four thousand, four hundred twenty-five".