1704428 has 12 divisors (see below), whose sum is σ = 3253992. Its totient is φ = 774720.

The previous prime is 1704421. The next prime is 1704431. The reversal of 1704428 is 8244071.

It is a junction number, because it is equal to n+sod(n) for n = 1704397 and 1704406.

It is not an unprimeable number, because it can be changed into a prime (1704421) 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, 19325 + ... + 19412.

It is an arithmetic number, because the mean of its divisors is an integer number (271166).

2^1704428 is an apocalyptic number.

It is an amenable number.

1704428 is a deficient number, since it is larger than the sum of its proper divisors (1549564).

1704428 is a wasteful number, since it uses less digits than its factorization.

1704428 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38752 (or 38750 counting only the distinct ones).

The product of its (nonzero) digits is 1792, while the sum is 26.

The square root of 1704428 is about 1305.5374372265. The cubic root of 1704428 is about 119.4518517771.

Adding to 1704428 its reverse (8244071), we get a palindrome (9948499).

The spelling of 1704428 in words is "one million, seven hundred four thousand, four hundred twenty-eight".