1628204 has 12 divisors (see below), whose sum is σ = 2863224. Its totient is φ = 810144.

The previous prime is 1628203. The next prime is 1628227. The reversal of 1628204 is 4028261.

It is a plaindrome in base 15.

It is a self number, because there is not a number n which added to its sum of digits gives 1628204.

It is not an unprimeable number, because it can be changed into a prime (1628203) 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, 59 + ... + 1805.

It is an arithmetic number, because the mean of its divisors is an integer number (238602).

2^1628204 is an apocalyptic number.

It is an amenable number.

1628204 is a deficient number, since it is larger than the sum of its proper divisors (1235020).

1628204 is a wasteful number, since it uses less digits than its factorization.

1628204 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1984 (or 1982 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 23.

The square root of 1628204 is about 1276.0109717397. The cubic root of 1628204 is about 117.6439521336.

The spelling of 1628204 in words is "one million, six hundred twenty-eight thousand, two hundred four".